K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

Mark the letter A, B, C or D to indicate the correct answer to each of the following question.7.Water _______ at about 100 C°. I learn about it from my previous physics lesson.A. boils B. boil C. is boiling D. are boiling8.My mother and my sister ____ swimming twice a week.A. go B. goes C. are D. is9.Look at him ! He ____ morning exercise with his father.A. does B. is doing C. learns D. is learning10.They usually play table tennis every afternoon, but today they ____ with their partners to...
Đọc tiếp

Mark the letter A, B, C or D to indicate the correct answer to each of the following question.

7.Water _______ at about 100 C°. I learn about it from my previous physics lesson.

A. boils B. boil C. is boiling D. are boiling

8.My mother and my sister ____ swimming twice a week.

A. go B. goes C. are D. is

9.Look at him ! He ____ morning exercise with his father.

A. does B. is doing C. learns D. is learning

10.They usually play table tennis every afternoon, but today they ____ with their partners to prepare for the next exams.

A. is studying B. study C. are studying C. studies

11.Their sister ____ alone at home now. She ____ with her friends in the park. They look very happy.

A. is/is playing B.is/ isn’t playing C. isn’t/ isn’t playing D. isn’t / is playing

12. I always enjoy _______ to my grandfather. He always tells me great stories.

A. to talk B. to talking C. talking D. talk

13.I don’t like _______ up early in the winter days. I love ______ in bed late.

A. getting / to stay B. get / stay C. getting / stay D. get / staying

14.I don’t mind _______ the people in my neighbourhood.

A. help B. helping C. to help D. to helping

15. At present, that author ______ a historical novel.

A. is writing B. had written C. has written D. was writing

16. Where is your father? He ____________ his old bike in the backyard.

A. has repaired B. was repaired C. is repairing D. had repaired

17. I ______ Texas State University now.

A. am attending B. attend C. was attending D. attended

18 Ask her to come and see me when she _______ her work.

A. finishes B. would finish C. finished D. finishing

19. Turn off the gas. Don’t you see that the kettle ________ ?

A. boil B. boils C. is boiling D. boiled

20. He always ________ for a walk in the evening.

A. go B. is going C. goes D. going

21. Her brother ______ in Canada at present.

A. working B. works C. is working D. work

22. I usually ____ to school by bus.

A. went B. am going C. go D. have gone

23. Water ____ at 100 degrees Celsius.

A. boils B. boiled C. is boiling D. will boil

24. My brother usually ________me for help when he has any difficulties with his homework.

A. ask B. asks C. asked D. has asked

 

2
19 tháng 9 2021

7 A

8 A

9 B

10 C

11 D

12 C

13 A

14 B

15 A

16 C

17 A

18 A

18 C

19 C

20 C

21 C

23 A

24 B

19 tháng 9 2021

Mark the letter A, B, C or D to indicate the correct answer to each of the following question.

7.Water _______ at about 100 C°. I learn about it from my previous physics lesson.

A*. boils B. boil C. is boiling D. are boiling

8.My mother and my sister ____ swimming twice a week.

A*. go B. goes C. are D. is

9.Look at him ! He ____ morning exercise with his father.

A. does B*. is doing C. learns D. is learning

10.They usually play table tennis every afternoon, but today they ____ with their partners to prepare for the next exams.

A. is studying B. study C*. are studying C. studies

11.Their sister ____ alone at home now. She ____ with her friends in the park. They look very happy.

A. is/is playing B.is/ isn’t playing C. isn’t/ isn’t playing D*. isn’t / is playing

12. I always enjoy _______ to my grandfather. He always tells me great stories.

A. to talk B. to talking C*. talking D. talk

13.I don’t like _______ up early in the winter days. I love ______ in bed late.

A*. getting / to stay B. get / stay C. getting / stay D. get / staying

14.I don’t mind _______ the people in my neighbourhood.

A. help B*. helping C. to help D. to helping

15. At present, that author ______ a historical novel.

A*. is writing B. had written C. has written D. was writing

16. Where is your father? He ____________ his old bike in the backyard.

A. has repaired B. was repaired C*. is repairing D. had repaired

17. I ______ Texas State University now.

A*. am attending B. attend C. was attending D. attended

18 Ask her to come and see me when she _______ her work.

A*. finishes B. would finish C. finished D. finishing

19. Turn off the gas. Don’t you see that the kettle ________ ?

A. boil B. boils C*. is boiling D. boiled

20. He always ________ for a walk in the evening.

A. go B. is going C*. goes D. going

21. Her brother ______ in Canada at present.

A. working B. works C*. is working D. work

22. I usually ____ to school by bus.

A. went B*. am going C. go D. have gone

23. Water ____ at 100 degrees Celsius.

A*. boils B. boiled C. is boiling D. will boil

24. My brother usually ________me for help when he has any difficulties with his homework.

A. ask B*. asks C. asked D. has asked

6. I have just started English courses. I ______ English grammar.A. study B. studying C. am studying D. studied7. Mercury ______ at 357.23 degrees centigrade.A. boils B. is boiling C. boiling D. bioled8. "We must buy new plates." "It`s useless. You always ______ plates."A. break B. are breaking C. breaking D. broke9. It ______ me that they can`t sell their flat.A. surprises B. is surprising C. surprising D. surprise10. A woman who ______ after other people`s children is a nanny.A. looks B. is...
Đọc tiếp

6. I have just started English courses. I ______ English grammar.
A. study B. studying C. am studying D. studied
7. Mercury ______ at 357.23 degrees centigrade.
A. boils B. is boiling C. boiling D. bioled
8. "We must buy new plates." "It`s useless. You always ______ plates."
A. break B. are breaking C. breaking D. broke
9. It ______ me that they can`t sell their flat.
A. surprises B. is surprising C. surprising D. surprise
10. A woman who ______ after other people`s children is a nanny.
A. looks B. is looking C. looking D. looked
11. Be quiet, please. We ______ at the translation and you ______ a lot of noise.
A. are working - are making B. work - are making
C. are working - make D. work - make
12. He always ______ for a walk in the evening.
A. go B. is going C. goes D. going
13. "Where`s Jack?" "He ______ his girlfriend at the station. She ______ at 12 o`clock."
A. meets - is coming B. is meeting - comes
C. meets - comes D. is meeting - is coming
14. She ______. Is something wrong?
A. cries B. is crying C. cry D. crying
15. In the morning, I ______ little time, so I ______ a shower in the evening.
A. have - take B. am having - am taking
C. have - am taking D. am having - take
16. A decade ______ a period of ten years.
A. describes B. is describing C. describe D. describing
17. Her brother ______ in Canada at present.
A. working B. works C. is working D. work
18. She always ______ but ______ nothing to realize her dreams.
A. dreams - does B. is dreaming - does
C. dream - is doing D. is dreaming - is doing
19. He ______ so suspicious to me at the moment. I wonder why.
A. be B. will be C. was D. is being
20. Hurry up, Jane! We all ______ for you.
A. wait B. are waiting C. waiting D. are waited
 

1
23 tháng 8 2021

6. I have just started English courses. I ______ English grammar.
A. study B. studying C. am studying D. studied
7. Mercury ______ at 357.23 degrees centigrade.
A. boils B. is boiling C. boiling D. bioled 

s Jack?" "He ______ his girlfriend at the station. She ______ at 12 o`clock."

A. meets - is coming B. is meeting - comes
C. meets - comes D. is meeting - is coming
14. She ______. Is something wrong?
A. cries B. is crying C. cry D. crying
15. In the morning, I ______ little time, so I ______ a shower in the evening.
A. have - take B. am having - am taking
C. have - am taking D. am having - take
16. A decade ______ a period of ten years.
A. describes B. is describing C. describe D. describing
17. Her brother ______ in Canada at present.
A. working B. works C. is working D. work
18. She always ______ but ______ nothing to realize her dreams.
A. dreams - does B. is dreaming - does
C. dream - is doing D. is dreaming - is doing

5 tháng 7 2017

Not swimming when water is at 100 degrees

Câu11. Water …………………….at 100°C.       A. boil                     B. boils                    C. boiled                   D. is boilingCâu12. She was not…………be in my class.    A. old enough for       B. enough old           C. old enough to                D. old enoughCâu13.. ………….. is a building in which movies are shown.    A. Movie theater        B. University            C. Aquarium           D. RestaurantCâu14. Alexander Graham Bell was born in ………… .    A. The USA               B....
Đọc tiếp

Câu11. Water …………………….at 100°C.
       A. boil                     B. boils                    C. boiled                   D. is boiling
Câu12. She was not…………be in my class.

    A. old enough for       B. enough old           C. old enough to                D. old enough

Câu13.. ………….. is a building in which movies are shown.
    A. Movie theater        B. University            C. Aquarium           D. Restaurant

Câu14. Alexander Graham Bell was born in ………… .

    A. The USA               B. Scotland              C. Canada                D. America

Câu15. Hoa’s…………watch that movie on TV tonight.

     A. going to                B. go to                    C. be going to          D. is going to

Câu16. Nam has to cook dinner .………… .

          A. herself              B. himself                 C. yourself              D. itself

Câu17. You must …………. all your exercises before going out.

          A. to finish           B. finishing               C.  finished              D. finish

Câu18. Putting a knife into an electrical socket is ………… .

          A. suitable            B. dangerous            C. convenient       D. comfortable

Câu19. My grandma used ………… on a farm.

          A. to live              B. live                       C. lived                  D. living

Câu 20. ………….. is a large piece of furniture where you can hang your clothes.

A. Wardrobe                  B. Refrigerator           C.  Desk               D. Counter

Câu 21. He’s tall and thin. He …………………short black hair.

          A. is                     B. have                 C. had                            D. has

Câu 22. I enjoy telling jokes. My friends usually enjoy my sense of…………..

          A. humorous        B. humor              C. funny                        D. laugh

Câu 23. My sister’s hair is not…………………..

          A. slim                 B. fat                    C. curly                         D. sociable

Câu 24. Yesterday I ……………… to the cinema.

A. go                              B. will go              C. went                          D. has go

Câu 25. Students  ought……………….their lessons before going to school.

          A. prepares          B. prepare            C. prepared                   D. to prepare

Câu 26. We ……………………..in the same class last year.

          A. is                     B. was                  C. are                           D. were

Câu 27.Your school is different …………………his school.

          A. to                        B. with                   C. from                    D. for

Câu 28. I was born in Viet Nam; Vietnamese is my………………..

    A. mother tongue          B. first language     C. foreign language      D. English

Câu 29. The doctor……………………. he should take a few days off.

        A. say                     B. said                  C. asked                     D. tell

 Câu 30.  Airmail is ………………………… expensive than surface mail.

        A. more                     B. the same            C. as                                   D. most                     

           Câu 31. May I …………. you? – Yes. Thank you.

                 A. help                     B. helped            C. to help                     D. helping

Câu 32. We have lived here ………………….. 10 years.

         A. since                    B. at                        C. for                       D. in

Câu 33. Hoa always gets good marks because she studies very…………

          A. hard                B. badly                C. good                       D. slowly

          Câu 34. ………… do they plant and water trees along streets? – On February 7th.

                   A. Where              B. What                C. When                     D. Why

1
11 tháng 1 2022

Câu11. Water …………………….at 100°C.
       A. boil                     B. boils                    C. boiled                   D. is boiling
Câu12. She was not…………be in my class.

    A. old enough for       B. enough old           C. old enough to                D. old enough

Câu13.. ………….. is a building in which movies are shown.
    A. Movie theater        B. University            C. Aquarium           D. Restaurant

Câu14. Alexander Graham Bell was born in ………… .

    A. The USA               B. Scotland              C. Canada                D. America

Câu15. Hoa’s…………watch that movie on TV tonight.

     A. going to                B. go to                    C. be going to          D. is going to

Câu16. Nam has to cook dinner .………… .

          A. herself              B. himself                 C. yourself              D. itself

Câu17. You must …………. all your exercises before going out.

          A. to finish           B. finishing               C.  finished              D. finish

Câu18. Putting a knife into an electrical socket is ………… .

          A. suitable            B. dangerous            C. convenient       D. comfortable

Câu19. My grandma used ………… on a farm.

          A. to live              B. live                       C. lived                  D. living

Câu 20. ………….. is a large piece of furniture where you can hang your clothes.

A. Wardrobe                  B. Refrigerator           C.  Desk               D. Counter

Câu 21. He’s tall and thin. He …………………short black hair.

          A. is                     B. have                 C. had                            D. has

Câu 22. I enjoy telling jokes. My friends usually enjoy my sense of…………..

          A. humorous        B. humor              C. funny                        D. laugh

Câu 23. My sister’s hair is not…………………..

          A. slim                 B. fat                    C. curly                         D. sociable

Câu 24. Yesterday I ……………… to the cinema.

A. go                              B. will go              C. went                          D. has go

Câu 25. Students  ought……………….their lessons before going to school.

          A. prepares          B. prepare            C. prepared                   D. to prepare

Câu 26. We ……………………..in the same class last year.

          A. is                     B. was                  C. are                           D. were

Câu 27.Your school is different …………………his school.

          A. to                        B. with                   C. from                    D. for

Câu 28. I was born in Viet Nam; Vietnamese is my………………..

    A. mother tongue          B. first language     C. foreign language      D. English

Câu 29. The doctor……………………. he should take a few days off.

        A. say                     B. said                  C. asked                     D. tell

 Câu 30.  Airmail is ………………………… expensive than surface mail.

        A. more                     B. the same            C. as                                   D. most                     

           Câu 31. May I …………. you? – Yes. Thank you.

                 A. help                     B. helped            C. to help                     D. helping

Câu 32. We have lived here ………………….. 10 years.

         A. since                    B. at                        C. for                       D. in

Câu 33. Hoa always gets good marks because she studies very…………

          A. hard                B. badly                C. good                       D. slowly

          Câu 34. ………… do they plant and water trees along streets? – On February 7th.

                   A. Where              B. What                C. When                     D. Why

17 tháng 8 2018

(1) put                                                                (5) warm

(2) heat                                                              (6) add

(3) empty                                                           (7) allow

(4) take                                                               (8) use

17 tháng 9 2017

Khoanh tròn đáp án đúng ( chú ý "x" có nghĩa là không cần mạo từ )

1 __________ youngest boy has just started going to _______ school
A. a/x B. x/the C. an/x D.the/x
2.________ eldest boy is at _______college
A.a/the B. the/x C.x/a D. an/x
3. Would you like to hear_______ story about ________ English scientist ?
A.an/the B. the/the C.a/the D.a/an
4. There'll always be a conflict between________ old and _______ young.
A.the/the B.an/a C. an/the D. the/a
5. There was _______ collision at _______ corner.
A. the/a B.an/the C. a/the D.the/the
6. My mother thinks that this is ________ expensive shop.
A. the B.an C.a D.x
7.Like many women, she loves _______parties and ______ gifts.
A.the/a B. a/the C.a/a D. x/x

MICROWAVING Microwaving is a method of cooking where food is bombarded by microwaves, usually within an appliance called a microwave oven which excite the water, fat and sugar molecules, thereby heating (cooking) both the outside and center of the food at the same time. (1)………………… (A common myth is that a microwave oven cooks from the center of the food outward. This appears to happen because heat generated at the surface escapes more readily from the surface of the food into the surrounding...
Đọc tiếp

MICROWAVING
Microwaving is a method of cooking where food is bombarded by microwaves, usually
within an appliance called a microwave oven which excite the water, fat and sugar
molecules, thereby heating (cooking) both the outside and center of the food at the same
time. (1)…………………
(A common myth is that a microwave oven cooks from the center of the food outward. This
appears to happen because heat generated at the surface escapes more readily from the
surface of the food into the surrounding air.) One advantage of microwaving is that small
amounts of food can be heated very quickly, making it useful for reheating leftovers.
The disadvantage is that food which is microwaved does not undergo some of the chemical
reactions, such as browning, which makes the food visually attractive. Primitive microwave
ovens often do not cook evenly, leading to a concern that bacteria easily killed by more
traditional cooking methods may survive the quick cooking time in "cold spots", though the
food item as a whole is cooked to a safe average temperature. (2) ……
Some high-end microwave ovens are combined with a convection oven which basically
cook the food using microwave and hot air simultaneously to achieve both the fast cooking
time and browning effect.
(3) …………………
However microwave ovens are used in some fast food chains and special microwave bags
are available for cooking fowl or large joints of meat.
Professional chefs generally recommend using microwaves for a limited set of tasks,
including: melting fats (such as butter) and chocolate, cooking grains like oatmeal and grits,
cooking rice, thawing frozen meats and vegetables before cooking by other methods and
quickly reheating already-cooked foods.
Using a microwave to boil water is potentially dangerous, due to superheating. In a
microwave, water can be raised quickly to a temperature above the boiling point before
major bubbles form, especially if it is purified and in a very clean glass vessel. (4)
…………………
This effect is rare, even for scientists who try to deliberately recreate it, and any seed
whatsoever for boiling is likely to prevent the problem. Boiling water with, for instance, a
teabag already in it will prevent any dangers by providing a seed, as will using a mug that is
not perfectly clean.

The risk greatly increases when water has already been boiled once in the same container.
This situation can occur if the user of the oven boiled the water once, forgot about it, then
came back later to boil it again. The first time the water boils, the seed bubbles
(microscopic bubbles of air around which larger steam bubbles grow) are used up and
largely eliminated from the water as it cools down. When the water is heated again, the lack
of seed bubbles causes superheating, and a risk of a steam explosion when the water's
surface is disturbed.
Placing something in the water before heating can mostly alleviate this risk. If you are
planning to mix something with the water, say tea or hot chocolate, adding it before heating
will insure that the water boils. Otherwise, placing a wood object, for instance a chopstick,
in the water before heating will also work.
Care should be taken when removing heated water from a microwave. Make sure that the
hands are protected from possible liquid boil-over, place the container on a level, heat-
proof surface and stir liquid with a warm spoon. Also, never add powdered substances
(such as instant coffee or cocoa mix) to the container taken from the microwave, due to the
addition of all those seed bubbles and the potential for violent, spontaneous boiling. (5)
…………………
Metal objects, such as metal utensils, in a microwave oven can lead to dangerous situations.
Metals do not absorb microwaves effectively. Instead, metals reflect microwaves, thereby
preventing the latter from reaching the food. (6) …………………
Thin metal layers, such as metal foil and mugs with metal trim can melt or burn due to the
strong electrical currents that are generated in metal objects. However, small solid metal
objects, such as spoons, in combination with a large amount of absorbing food or liquid,
normally do not lead to problems.
This article is licensed under the GNU Free Documentation License. It uses material from the
Original Wikipedia article.

0
1. The fatter I become, the ........ I runa. quicker         b. more slowly         c. slower       d. more fast2. Turn off the gas. Don't you see that the kettle .........?a. boiling         b. boils         c. is boiling          d. boiled3. Is Linda ..... most beautiful girls in club?a. the           b. much         c. one of          d. one of the4. These cakes are ........ from milka. done       b. made        c. making          d. doing5. I don't think she does homework ...... in classa....
Đọc tiếp

1. The fatter I become, the ........ I run

a. quicker         b. more slowly         c. slower       d. more fast

2. Turn off the gas. Don't you see that the kettle .........?

a. boiling         b. boils         c. is boiling          d. boiled

3. Is Linda ..... most beautiful girls in club?

a. the           b. much         c. one of          d. one of the

4. These cakes are ........ from milk

a. done       b. made        c. making          d. doing

5. I don't think she does homework ...... in class

a. the fastest            b. more faster           c. the more fastly        d. the most fast

6. She is much different ....... her sister

a. from          b. to          c. with        d. than

7. My granddad eats ........... rice in family

a. more           b. most         c. as much        d. the least

8. She plays the piano ...... as she sings

a. as beautifully     b. more beautifully    c. as beautiful    d. the most beautifully 

 

1
27 tháng 9 2021

1 C

2 C

3 A

4 B

5 A

6 A

7 D

8 A

Water pollution is a major global problem which requires ongoing evaluation and revision of water resource policy at all levels. It has been suggested that water pollution is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily. An estimated 580 people in India die of water pollution related illness every day. About 90 percent of the water in the cities of China is polluted. As of 2007, half a billion Chinese had no access to...
Đọc tiếp

Water pollution is a major global problem which requires ongoing evaluation and revision of water resource policy at all levels. It has been suggested that water pollution is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily. An estimated 580 people in India die of water pollution related illness every day. About 90 percent of the water in the cities of China is polluted. As of 2007, half a billion Chinese had no access to safe drinking water. In addition to the acute problems of water pollution in developing countries, developed countries also continue to struggle with pollution problems. For example, in the most recent national report on water quality in the United States, 44 percent of assessed stream miles, 64 percent of assessed lake acres, and 30 percent of assessed bays and estuarine square miles were classified as polluted. The head of China’s national development agency said in 2007 that one quarter the length of China’s seven main rivers were so poisoned the water harmed the skin.

Water is typically referred to as polluted when it is impaired by anthropogenic contaminants and either does not support a human use, such as drinking water, or undergoes a marked shift in its ability to support its constituent biotic communities, such as fish. Natural phenomena such as volcanoes, algae blooms, storms, and earthquakes also cause major changes in water quality and the ecological status of water.

1. What is the leading worldwide cause of deaths and diseases?

2. How many people die every day by water pollution?

3. How many percent of the water in the cities of China is polluted?

5. What phenomena cause major changes in water quality and the ecological status of water?

0