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Much has been said written about the declining numbers of and disappointing lack of diversity among American college students majoring in engineering. Among the factors cited to explain this phenomenon are the lack of exposure of high school students to the very idea of engineering and the fact that many have insufficient mathematics and science background to gain entrance to engineering school, even if they do identify the profession as a possible career. This is unfortunate, for the ideas of engineering should be integrated into the curricula not only of high schools but also of middle and primary schools. Our children are being done a disservice by not being exposed properly throughout their education to engineering activities identified as such.

After all, even pre-school children have the prerequisites in their play for appreciating exactly what engineering is: design, Indeed, design is everywhere around them throughout their school day, even in their before-school and after-school activities. It need only be pointed out to them that they designing something, and therefore being engineering of sorts, in virtually everything that they do

Much has been said written about the declining numbers of and disappointing lack of diversity among American college students majoring in engineering. Among the factors cited to explain this phenomenon are the lack of exposure of high school students to the very idea of engineering and the fact that many have insufficient mathematics and science background to gain entrance to engineering school, even if they do identify the profession as a possible career. This is unfortunate, for the ideas of engineering should be integrated into the curricula not only of high schools but also of middle and primary schools. Our children are being done a disservice by not being exposed properly throughout their education to engineering activities identified as such.

After all, even pre-school children have the prerequisites in their play for appreciating exactly what engineering is: design, Indeed, design is everywhere around them throughout their school day, even in their before-school and after-school activities. It need only be pointed out to them that they designing something, and therefore being engineering of sorts, in virtually everything that they do.

1. the writer of the passage feels strongly that....
A. children should be involved in engineering activities at an early age
B. The mathematics and science courses in schools need to be modernized
C. University engineering courses ought to be upgraded
D. The education of pre-school children is being given too much important

2. The writer points out that children can, at a very early age

A. be encouraged to take part in after-school activities

B. develop an interested in scientific matters

C. make up their minds to study engineering at university

D. be influenced by their school environment

3. The writer recognizes the fact that engineering

A. is becoming less and less popular as a field of study among university students B. is only suitable for highly intelligent students

C. is a complicated subject only suitable for really mature students

D. has become one of the most popular fields of study at American universities

3. The writer recognizes the fact that engineering

A. is becoming less and less popular as a field of study among university students

B. is only suitable for highly intelligent students

C. is a complicated subject only suitable for really mature students

D. has become one of the most popular fields of study at American universities

4. Among the reasons given in the passage for the decline in the numbers of engineering students is that

A. the American schools still follow out - dated curricula curricula

B. university entrance requirements are far too demanding

C. many of them fail to acquire an adequate knowledge of mathematics and science at high schools.

D. it is generally recognized as one of the most difficult of all the courses

5. According to the passage, all school programmes.....

A. should be designed to make students aware of the engineering practices and principles

B. ought to give priority to sciences

C. must encourage children to make creative designs

D. Seem to put the emphasis on the need to diversify learning

1
30 tháng 6 2020

1. the writer of the passage feels strongly that....
A. children should be involved in engineering activities at an early age
B. The mathematics and science courses in schools need to be modernized
C. University engineering courses ought to be upgraded
D. The education of pre-school children is being given too much important

2. The writer points out that children can, at a very early age

A. be encouraged to take part in after-school activities

B. develop an interested in scientific matters

C. make up their minds to study engineering at university

D. be influenced by their school environment

3. The writer recognizes the fact that engineering

A. is becoming less and less popular as a field of study among university students B. is only suitable for highly intelligent students

C. is a complicated subject only suitable for really mature students

D. has become one of the most popular fields of study at American universities

3. The writer recognizes the fact that engineering

A. is becoming less and less popular as a field of study among university students

B. is only suitable for highly intelligent students

C. is a complicated subject only suitable for really mature students

D. has become one of the most popular fields of study at American universities

4. Among the reasons given in the passage for the decline in the numbers of engineering students is that

A. the American schools still follow out - dated curricula curricula

B. university entrance requirements are far too demanding

C. many of them fail to acquire an adequate knowledge of mathematics and science at high schools.

D. it is generally recognized as one of the most difficult of all the courses

5. According to the passage, all school programmes.....

A. should be designed to make students aware of the engineering practices and principles

B. ought to give priority to sciences

C. must encourage children to make creative designs

D. Seem to put the emphasis on the need to diversify learning

Read the formal and less formal articles and fill in the gaps by choosing one of the phrases below. 1. without the basic knowledge of / without knowing 2. To start with / Firstly 3. should have close contact / should be in constant contact 4.Thus, any problems that do arise can be dealt with quickly/so that any problems can be quickly sorted out 5. the students are kept motivated and willing to study / the kids learn and their work is rewarded 6. the parents should be more understanding /...
Đọc tiếp

Read the formal and less formal articles and fill in the gaps by choosing one of the phrases below.

1. without the basic knowledge of / without knowing

2. To start with / Firstly

3. should have close contact / should be in constant contact

4.Thus, any problems that do arise can be dealt with quickly/so that any problems can be quickly sorted out

5. the students are kept motivated and willing to study / the kids learn and their work is rewarded

6. the parents should be more understanding / it is the parents' responsibility to understand

7. This involves helping them with their homework / They should offer help with homework

8. the solution lies in the improvement / I believe that things will get better

MODEL 1: Today’ Illiterate Youth s More and more children are leaving school, 1) ......................... how to read or write. I believe that this is due to the lack of support and encouragement by teachers and parents and the pupils' lack of interest. 2) .......................... the teachers 3)......................... with the parents to discuss their child's academic progress as well as their social behaviour and attitude. 4) ..................… Secondly, teachers should be more encouraging towards their pupils, keeping them interested in the subjects so that 5) ................. . Thirdly, 6)............... their child's needs. 7) ................. and supporting them in any difficulties that may arise. In conclusion, 8)...… ........ of the relationships between all three groups: the teachers, parents and pupils, and in this way, illiteracy should decrease.

MODEL 2: Our Kids Can’ Read! t You may not be aware of it, but more and more children are leaving school, 1) ......................... how to read or write. As I see it, the problem can be solved by increasing the support and encouragement of teachers and parents and the interest of pupils. 2).........................., the teachers 3) ......................... with the parents, so that they can discuss their child's progress and behaviour at school 4)......................... .

0
Read the passage below and choose the best answers. Each nation has many good people who take care of others. For example, some of high school and college students in the United States often spend many hours as volunteers in hospitals, orphanages or home for the elderly. They read books to the people in these places, or they just visit them and play games with them or listen to their problems. Other young volunteers go and work in the homes of people who are sick or old. They paint, clean up,...
Đọc tiếp

Read the passage below and choose the best answers.

Each nation has many good people who take care of others. For example, some of high school and college students in the United States often spend many hours as volunteers in hospitals, orphanages or home for the elderly. They read books to the people in these places, or they just visit them and play games with them or listen to their problems. Other young volunteers go and work in the homes of people who are sick or old. They paint, clean up, or repair their houses, or the shopping or mow their lawns. For boys who no longer have fathers there is an organization called Big Brothers. College students and other men take these boys to baseball games or on fishing trips and help them to get to know things that boys usually learn from their fathers. Each city has a number of clubs where boys and girls can go and play games or learn crafts. Some of these clubs show movies or organize short trips to the mountains, the beaches, museums or other places of interest. Most of these clubs use a lot of high school and college students as volunteers because they are young enough to understand the problems of younger boys and girls. Volunteers believe that some of the happiest people in the world are those who help to bring happiness to others.

1. What do volunteers usually do to help those who are sick or old in their homes?

A. They mow lawns, do shopping, and clean up their houses.

B. They cook, sew, and wash their clothes.

C. They tell them stories and sing and dance for them.

D. They take them to baseball games.

2. What do they help boys whose fathers do not live with them?

A. To get to know things about their fathers.

B. To get to know things that boys want from their fathers.

C. To learn things that boys usually learn from their fathers.

D. To learn things about their fathers.

3. Which activity is NOT available for the students at the clubs?

A. playing games B. watching films C. going to interesting places D. learning photography

4. Why do they use many high school and college students as volunteers? Because......

A. they have a lot of free time.

B. they can understand the problems of younger boys and girls.

C. they know how to do the work.

D. they are good at playing games and learning crafts.

5. What do volunteers believe?

A. In order to make others happy, they have got to be unhappy.

B. The happiest people in the world are those who make themselves happy.

C. The happiest people in the world are those who are young and healthy.

D. Bringing happiness to others makes them the happiest people in the world

1
24 tháng 2 2018

Read the passage below and choose the best answers.

Each nation has many good people who take care of others. For example, some of high school and college students in the United States often spend many hours as volunteers in hospitals, orphanages or home for the elderly. They read books to the people in these places, or they just visit them and play games with them or listen to their problems. Other young volunteers go and work in the homes of people who are sick or old. They paint, clean up, or repair their houses, or the shopping or mow their lawns. For boys who no longer have fathers there is an organization called Big Brothers. College students and other men take these boys to baseball games or on fishing trips and help them to get to know things that boys usually learn from their fathers. Each city has a number of clubs where boys and girls can go and play games or learn crafts. Some of these clubs show movies or organize short trips to the mountains, the beaches, museums or other places of interest. Most of these clubs use a lot of high school and college students as volunteers because they are young enough to understand the problems of younger boys and girls. Volunteers believe that some of the happiest people in the world are those who help to bring happiness to others.

1. What do volunteers usually do to help those who are sick or old in their homes?

A. They mow lawns, do shopping, and clean up their houses.

B. They cook, sew, and wash their clothes.

C. They tell them stories and sing and dance for them.

D. They take them to baseball games.

2. What do they help boys whose fathers do not live with them?

A. To get to know things about their fathers.

B. To get to know things that boys want from their fathers.

C. To learn things that boys usually learn from their fathers.

D. To learn things about their fathers.

3. Which activity is NOT available for the students at the clubs?

A. playing games B. watching films C. going to interesting places D. learning photography

4. Why do they use many high school and college students as volunteers? Because......

A. they have a lot of free time.

B. they can understand the problems of younger boys and girls.

C. they know how to do the work.

D. they are good at playing games and learning crafts.

5. What do volunteers believe?

A. In order to make others happy, they have got to be unhappy.

B. The happiest people in the world are those who make themselves happy.

C. The happiest people in the world are those who are young and healthy.

D. Bringing happiness to others makes them the happiest people in the world

A.poor quality of education in schools there B.broken into or being attacked and robbeed C.in the fields to earn their living D.where people can relax and socialize whith their friends E. can also have a trest and go for a nice walk F looking for a job G.with finding studying materials H.are healthier than you can buy in the greengrocer’s Living in the countryside brings back both advantages and disadvantages .First of all countryside is not polluted, therefore you can breath fresh air...
Đọc tiếp

A.poor quality of education in schools there

B.broken into or being attacked and robbeed

C.in the fields to earn their living

D.where people can relax and socialize whith their friends

E. can also have a trest and go for a nice walk

F looking for a job

G.with finding studying materials

H.are healthier than you can buy in the greengrocer’s

Living in the countryside brings back both advantages and disadvantages .First of all countryside is not polluted, therefore you can breath fresh air .Besides there is hardly any road traffic thus you can enjoy silence in the country You(1) .................... in the forest or in the meadows .What is more,in the country ,people can grow their own fruit and vegetables which (2)...............-in the city .Next ,it is safer than life in a metropolis .In small towns or villages ,crime rate is usually very low and people do not need to be afraid of having their house(3).....in the street .Moreover ,it seems that in the country the relationship between people s more genuine because people are friendly and open.One of the drawbacks of living in the countryside is(4)........Country schools do not usually have good facilities like gyms or computer rooms .In addition ,students have often problems(5)......as the access to the Internet still is not widespread there.Moreover ,children develop their natural talents since they cannot attend any additional lessons or courses.The most serious problem of living in the country is (6)...........There are no companies or factories tat will offer people employment .Therefore ,most dwellers of the country are farmers who have to work very hard (7) ............Those who are lucky enough can seek jobs in nearby towns but they will have a problem with commuting as the communication network is not developed well in the country .Another bad side of country life is lack of entertainment .There are no cafes or cinemas(8)................

1
17 tháng 8 2017

A.poor quality of education in schools there

B.broken into or being attacked and robbeed

C.in the fields to earn their living

D.where people can relax and socialize whith their friends

E. can also have a trest and go for a nice walk

F looking for a job

G.with finding studying materials

H.are healthier than you can buy in the greengrocer’s

Living in the countryside brings back both advantages and disadvantages .First of all countryside is not polluted, therefore you can breath fresh air .Besides there is hardly any road traffic thus you can enjoy silence in the country You(1) H in the forest or in the meadows .What is more,in the country ,people can grow their own fruit and vegetables which (2) E -in the city .Next ,it is safer than life in a metropolis .In small towns or villages ,crime rate is usually very low and people do not need to be afraid of having their house(3) B in the street .Moreover ,it seems that in the country the relationship between people s more genuine because people are friendly and open.One of the drawbacks of living in the countryside is(4) A Country schools do not usually have good facilities like gyms or computer rooms .In addition ,students have often problems(5) G as the access to the Internet still is not widespread there.Moreover ,children develop their natural talents since they cannot attend any additional lessons or courses.The most serious problem of living in the country is (6) F There are no companies or factories tat will offer people employment .Therefore ,most dwellers of the country are farmers who have to work very hard (7) C Those who are lucky enough can seek jobs in nearby towns but they will have a problem with commuting as the communication network is not developed well in the country .Another bad side of country life is lack of entertainment .There are no cafes or cinemas(8) D

Some people believe that soon schools will no longer be necessary. These people say that because of the Internet and other new(1) ______________ ,there is no longer any need for school buildings, former classes, or teachers. Perhaps this will be true one day, but it is hard for me to (2) ________________ a world without schools. In fact, we need to look at how we can use new technology to make schools better not to (3) _________________ them. We should invent a new kind of school that is (4)...
Đọc tiếp

Some people believe that soon schools will no longer be necessary. These people say that because of the Internet and other new(1) ______________ ,there is no longer any need for school buildings, former classes, or teachers. Perhaps this will be true one day, but it is hard for me to (2) ________________ a world without schools. In fact, we need to look at how we can use new technology to make schools better not to (3) _________________ them. We should invent a new kind of school that is (4) __________________ to libraries, museums science centres, laboratories, and even companies. Experts could give (5) ________________ on video or over the Internet. TV networks and local stations could (6) _________________ programming about things students are actually studying in school. 

          Is this just a dream? No. Already there are several towns where this is beginning to happen. Blacksburg, Virginia, is one of them. Here the entire city is linked to the Internet, and learning can take place at home, at school and in the office. Businesses provide (7) _________________ for the schools and the (8) __________________. The schools provide computer labs for people (9) ___________________ their own computers at home. Because everyone can use the Internet, older people participate as much as younger ones, and everyone can visit distant libraries and museums as easily as (10) _____________________ ones.

Đề bài là điền từ vào chỗ trống nha

1
20 tháng 11 2021

(1) technology

(2) imagine

(3) eliminate

(4) linked

(5) talks

(6) develop

are , work , not , days , get , planted , take , soon didn't , as , to build , schools , over , lived , responsibility Hãy điền từ ở bảng vào chỗ trống Everyone is interested is education all (1)............the work in big countries and in small ones ,in cities as well as in villages. People (2)............building better (3)............. In on littler villagesin the Philippines there was (4)...........school at all. A typhoon blew down the old school...
Đọc tiếp
are , work , not , days , get , planted , take , soon
didn't , as , to build , schools , over , lived , responsibility

Hãy điền từ ở bảng vào chỗ trống

Everyone is interested is education all (1)............the work in big countries and in small ones ,in cities as well as in villages. People (2)............building better (3).............

In on littler villagesin the Philippines there was (4)...........school at all. A typhoon blew down the old school and many of the homes and a new school .When the storm was over , everyone set to work (5)............homes and new schools. They cut bamboo poles to make the walls of the school and used palm leaves for the roof. To separate the rooms ,they built screens of grass and palm leaves fastened to bamboo frames . On hot(6).............., they pushed all the screens back to let in as much air (7)..............possible. Even the children helped. thay made paths of stone and sand, and (8)................flowers along the edges

(9)..............,they finisheda fine new village school . It didn't (10)............any money to build this fine scholl but it took a lot os hard work . No wonder , everyone was proud of it . And all were proving that evryone was interested in education

1
24 tháng 6 2017
are , work , no , days , get , planted , take , soon
didn't , as , to build , schools , over , lived , responsibility

Hãy điền từ ở bảng vào chỗ trống

Everyone is interested is education all (1).... over ........the world in big countries and in small ones ,in cities as well as in villages. People (2)......are ......building better (3)..... schools........

In on littler villagesin the Philippines there was (4).....no......school at all. A typhoon blew down the old school and many of the homes and a new school .When the storm was over , everyone set to work (5)...to build .........homes and new schools. They cut bamboo poles to make the walls of the school and used palm leaves for the roof. To separate the rooms ,they built screens of grass and palm leaves fastened to bamboo frames . On hot(6)...days..........., they pushed all the screens back to let in as much air (7).....as.........possible. Even the children helped. thay made paths of stone and sand, and (8)...planted.............flowers along the edges

(9).....soon.........,they finisheda fine new village school . It didn't (10).....take.......any money to build this fine scholl but it took a lot os hard work . No wonder , everyone was proud of it . And all were proving that evryone was interested in education

Since the world has become ............ (industry),there has been an increase in the number of animal species that have either become extinct or have neared extinction. Bengal tiger, for instance, which once roamed the jungles in vast number, now only about 2,300 and by the year 2025, their population is ............ (estimate)to be down to zero. What is alarming about the case of the Bengal tiger is that this ............ (extinct) will have been caused almost entirely by poachers who...
Đọc tiếp

Since the world has become ............ (industry),there has been an increase in the number of animal species that have either become extinct or have neared extinction. Bengal tiger, for instance, which once roamed the jungles in vast number, now only about 2,300 and by the year 2025, their population is ............ (estimate)to be down to zero. What is alarming about the case of the Bengal tiger is that this ............ (extinct) will have been caused almost entirely by poachers who according to some sources, are not interested in material gain but in ...........(p gratification. This is an example of the callousness that is part of what is causing the problem of extinction. Animals like Bengal tigers as well as other endangered species are a valuable part of the world's ecosystem. .................(nation) laws protecting these animals must be enacted to ensure their .......(survive) and the survival of our planet.
Countries around the world have begun to deal with the problem in ..........(vary) ways. Some countries, in order to circumvent the problem, have allocated large amounts of land to animal reserves. They then charge admission to help defray the costs of maintaining the parks and they often must also depend on world organizations for support. With the money they get, they can invest in equipment, and patrols to protect the animals. Another solution that is an attempt to stem the tide of animal extinction is an international boycott of products made from endangered species. This seems fairly effective but it will not, by itself, prevent animals from being hunted and killed.

5
3 tháng 1 2020

chỗ trống 4 : person

3 tháng 1 2020

ai giúp với xíu đi học r

Complete the passage with the suitable words. Health is something we tend to ignore when we have it. When our body is rather well, we're hardly ever (1) .......... of it. But illness can come, even (2) ........... we are young. In fact, childhood has been a very vulnerable time. Many (3) ........ attacked children in particular and people knew very little about how to prevent such illness or how to (4) ........ them once they struck. The resuft was that many children died. About century ago,...
Đọc tiếp

Complete the passage with the suitable words.

Health is something we tend to ignore when we have it. When our body is rather well, we're hardly ever (1) .......... of it. But illness can come, even (2) ........... we are young. In fact, childhood has been a very vulnerable time. Many (3) ........ attacked children in particular and people knew very little about how to prevent such illness or how to (4) ........ them once they struck. The resuft was that many children died. About century ago, however, scientists found out about germs, and then everything (5) ........ The cause of many diseases (6) ........ known, and cures were developed. As this medical knowledge spread the world became (7).......... safer for children. The resuft is that whereas a hundred years ago the average man lived for 35 years. Nowadays, in many places of the world, people can expect to (8)........... for years. And what do we except by the years 2010 ? Undoubtedly, (9)....... science will continue to advance. Some people will be able to (10).......... medical problems that are unavoidable today.

1
18 tháng 7 2018

Complete the passage with the suitable words.

Health is something we tend to ignore when we have it. When our body is rather well, we're hardly ever (1) ..aware........ of it. But illness can come, even (2) .......when.... we are young. In fact, childhood has been a very vulnerable time. Many (3) ....diseases.... attacked children in particular and people knew very little about how to prevent such illness or how to (4) ...cure..... them once they struck. The resuft was that many children died. About century ago, however, scientists found out about germs, and then everything (5) .....changed... The cause of many diseases (6) ......was.. known, and cures were developed. As this medical knowledge spread the world became (7)......much.... safer for children. The resuft is that whereas a hundred years ago the average man lived for 35 years. Nowadays, in many places of the world, people can expect to (8)......live..... for years. And what do we except by the years 2010 ? Undoubtedly, (9)...medical.... science will continue to advance. Some people will be able to (10)......solve.... medical problems that are unavoidable today.

Dịch bài đọc sau: A new university without a library has recently opened in the USA. All the information normally found in a library is now stored in the university's computers. Without leaving their computers, users can send messages and receive information through telephone lines. However, this means that each student must have access to a computer, and many universities are making this a requirement for freshmen. College campuses now have computer jacks in every part of the university....
Đọc tiếp

Dịch bài đọc sau:

A new university without a library has recently opened in the USA. All the information normally found in a library is now stored in the university's computers. Without leaving their computers, users can send messages and receive information through telephone lines. However, this means that each student must have access to a computer, and many universities are making this a requirement for freshmen. College campuses now have computer jacks in every part of the university. Study is no longer restricted to just one location.

Computer bulletin boards are used in the same way as traditional ones in schools and colleges. The difference is that over 20 million people may have access to them. If students want to discuss math at 3 am, it's not a problem. They post messages on the bulletin board and find other people who want to talk about the same topic.

Technology now means students can get a degree without being on campus. There are people who are skeptical about this new method of education, but their concerns have had little impact.

1
7 tháng 4 2017

Một trường đại học mới mà không có thư viện gần đây đã được mở ở Mỹ. Tất cả các thông tin thường tìm thấy trong thư viện bây giờ được lưu trữ trong các máy tính của trường đại học. Không để máy tính của họ, người dùng có thể gửi tin nhắn và nhận thông tin qua đường dây điện thoại. Tuy nhiên, điều này có nghĩa là mỗi học sinh phải có quyền truy cập vào một máy tính, và nhiều trường đại học đang làm cho một yêu cầu này cho sinh viên năm nhất. Các trường đại học bây giờ có các lỗ cắm máy tính trong mọi phần của trường đại học. Nghiên cứu không còn giới hạn ở một địa điểm.

Bảng thông báo bằng máy tính được sử dụng giống như các bảng truyền thống trong các trường học và cao đẳng. Sự khác biệt là hơn 20 triệu người có thể truy cập vào họ. Nếu học sinh muốn thảo luận về toán vào lúc 3 giờ sáng, thì đó không phải là vấn đề. Họ đăng tin nhắn trên bảng tin và tìm những người khác muốn thảo luận về cùng một chủ đề.

Công nghệ bây giờ có nghĩa là sinh viên có thể có được một văn bằng mà không có trong khuôn viên trường. Có nhiều người hoài nghi về phương pháp giáo dục mới này, nhưng mối quan tâm của họ ít có tác động

Every year students in many countries learn English. Some of these students are young people, other are teenagers. Many are adults. Some learn at school, others study by themselves. A few learn English just by hearing the language in films, on television, in the office or among their friends. But not many are lucky enough to do that. Most people must work hard to learn another language. Many boys and girls learn English at school because it is one of their subjects. They study their own...
Đọc tiếp

Every year students in many countries learn English. Some of these students are young people, other are teenagers. Many are adults. Some learn at school, others study by themselves. A few learn English just by hearing the language in films, on television, in the office or among their friends. But not many are lucky enough to do that. Most people must work hard to learn another language.
Many boys and girls learn English at school because it is one of their subjects. They study their own language, mathematics and English. In England, or America, or Australia, many boys and girl study their own language, which is English, and mathematics and another language, perhaps French, or German or Spanish.
Many adults learn English, because it is useful for their work. Teenagers often learn English for their higher studies, because some of their books are in English at the college or university. Other people learn English because they want to read newspapers or magazines in English.

1.According to the writer………………
A. only adults learn English.
B.no children like learning English.
C.English is useful only to teenagers.
D.English is popular in much of the word.

2.Many people learn English by…………

A. watching videos only.
B. hearing the language in the office.
C. talking with the film stars.
D. working hard on their lessons.
3.Many boys and girls learn English because …………..

A. English can give them a job.
B. it is in included in their study courses.
C. their parents make them.
D. they have to study their own language.
5.Many adults learn English because ……………..
A. their work is useful.
B. they want to go abroad.
C. most of their books are in English.
D. it helps them in their work.

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8 tháng 4 2017

1. D

2. D

3. B

4. A