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23 tháng 6 2018

In first box, because there is 9 keys mixed up so the maximum of times we try to open the first box is 9 attempts

In second box, because there is 8 keys remaining mixed up so the maximum of times we try to open the second box is 8 attempts

.......

So on the last box will have 1 attempt

The maximum attempts to open 9 boxes is: 9 + 8 + ... + 1 = 45 attempts

11 tháng 12 2019

đúng hết rồi thì bạn định hỏi gì vậy

1. choose , the words or phrases that best fit each of the blank spaces Hello , Jane ! In class I enjoy ( 1 ) .......... next to Jane . She's my best friend and she wants to be an actress ( 2 ) ............. she grows up . She comes (3) ......... Canada , and she seems (4) ............ from the other girls . She is really confident , and I love being (5) ........... her because she is so funny . She (6) .......... expensive clothes , though her parents can't really afford them . She's the...
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1. choose , the words or phrases that best fit each of the blank spaces

Hello , Jane !

In class I enjoy ( 1 ) .......... next to Jane . She's my best friend and she wants to be an actress ( 2 ) ............. she grows up . She comes (3) ......... Canada , and she seems (4) ............ from the other girls . She is really confident , and I love being (5) ........... her because she is so funny . She (6) .......... expensive clothes , though her parents can't really afford them . She's the kind of person who prefers to buy (7) ......... T- shirts even if she can (8) ........ cheaper ones . She likes to look better (9) ...........all the other girls and so she feels jealous if someone tries to copy her clothes . Another thing : I dislike performing (10) ........... of other people , but she loves getting up at parties and singing.

1. a. to sit b. sitting c. sit d. sat

2. a. when b. while c. until d. before

3. a. in b. at c. from d. by

4. a. different b. the same c. as d. like

5. a. by b. with c. for d. to

6. a. is b. has c. was d. had

7. a. cheap b. expensive c. inexpensive d. cheaper

8. a. make b. do c. find d. look

9. a.of b. as c.to d. than

10. a. in front b. before c. above d. behind

2
6 tháng 10 2017

1b

6 tháng 10 2017

1. choose , the words or phrases that best fit each of the blank spaces

Hello , Jane !

In class I enjoy ( 1 ) .......... next to Jane . She's my best friend and she wants to be an actress ( 2 ) ............. she grows up . She comes (3) ......... Canada , and she seems (4) ............ from the other girls . She is really confident , and I love being (5) ........... her because she is so funny . She (6) .......... expensive clothes , though her parents can't really afford them . She's the kind of person who prefers to buy (7) ......... T- shirts even if she can (8) ........ cheaper ones . She likes to look better (9) ...........all the other girls and so she feels jealous if someone tries to copy her clothes . Another thing : I dislike performing (10) ........... of other people , but she loves getting up at parties and singing.

1. a. to sit b. sitting c. sit d. sat

2. a. when b. while c. until d. before

3. a. in b. at c. from d. by

4. a. different b. the same c. as d. like

5. a. by b. with c. for d. to

6. a. is b. has c. was d. had

7. a. cheap b. expensive c. inexpensive d. cheaper

8. a. make b. do c. find d. look

9. a.of b. as c.to d. than

10. a. in front b. before c. above d. behind

29 tháng 5 2020

Fill in the spaces with a suitable word based on the one provided in brackets

1. Nutritious meals are very important due to the energy they provide us daily (nutrition)

2. If Steve eats those undercooked chicken wings, he may have a stomachache (undercook)

3. Since we can cook many dishes with celery, it is very versatile (versatility)

4. The Maldives is a tropical nation made up of hundreds of islands (tropic)

5. Recently, the world has been knocked out by the magnificence of Son Doing cave (magnificent)

6. In spitet of the jungle's natural beauty, it is inaccessible due to dangerous animals (accessible)

7. Sofia wishes she went to an English immersion school where she had lots of international friends (immerse)

8. The simplicity of English form helps new learners remember words easily (simple)

9. English can borrow words from other languages because of its openness (open)

24 tháng 8 2019

2,had bought

3,would be

4,could

5,went

6,hadn't eaten

7,hadn't made

8,weren't

9,hadn't left

10,had

11,had written

I. Find the mistakes in the following sentences: 1. Any kind of violence must not be allow at school 2. These medicine must keep out of children’s reach 3. The instruction must follow strictly by the students 4. In the case of pupil being absent from school, messages can leave on the answering machine before 7:30 am 5. These pill must not take if you are under 12 years old. II. Give the correct form of the words in brackets:( dành cho hs khá, giỏi) 1. She faced...
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I. Find the mistakes in the following sentences:

1. Any kind of violence must not be allow at school

2. These medicine must keep out of children’s reach

3. The instruction must follow strictly by the students

4. In the case of pupil being absent from school, messages can leave on the answering machine before 7:30 am

5. These pill must not take if you are under 12 years old.

II. Give the correct form of the words in brackets:( dành cho hs khá, giỏi)

1. She faced .............................. because she not only had few friends but also was unwelcomed in that area ( lonely )

2. That a woman becomes a ..................... has ever been considered to be weird, as people have assumed that this job is only for men ( firefight )

3. Although she was aware of gender .................. in favor of boys, she applied for that position ( prefer )

4. This university is ranked as one of the most successful institutions which have made ................. progress in gender equality ( consider )

5. In order to eliminate gender inequality, domestic ................. need to be shared by both husband and wives ( responsible )

6. The number of female ................... has increased sharply for the past few years ( enroll )

7. My uncle is very .................... about rhinos. He has studied about them for a long time ( knowledge )

8. By knowing their children’s strength and .................. parents can find appropriate strategies to educate them( weak )

9. She contributed to the information of an ....................... for female pilots, gave advice to women on careers and helped inspire others ( organize )

10. Even today, her life and career remain .................. to many people ( fascinate )

III. Rearrange the words / phrases to make meaningful sentences:

1. equality / essay / an / gender / on / be / written / must / by / student / each

2. processed / will / when / these / files / be ?

3. a / course / finished / must / in / a / maximum / be / of / weeks / four

4. serious / obesity / be / health / considered / be / to / a / problem / can

5. achievements / in / information / technology / and / will / made / be / scientists / mor / by


help me

1
20 tháng 2 2020

I. Find the mistakes in the following sentences:

1. Any kind of violence must not be allow=> allowed at school

2. These medicine must keep=> be kept out of children’s reach

3. The instruction must follow=> be followed strictly by the students

4. In the case of pupil being absent from school, messages can leave=> be left on the answering machine before 7:30 am

5. These pill must not take=> be taken if you are under 12 years old.

II. Give the correct form of the words in brackets:( dành cho hs khá, giỏi)

1. She faced ...........loneliness................... because she not only had few friends but also was unwelcomed in that area ( lonely )

2. That a woman becomes a ........firefighter............. has ever been considered to be weird, as people have assumed that this job is only for men ( firefight )

3. Although she was aware of gender .....preference............. in favor of boys, she applied for that position ( prefer )

4. This university is ranked as one of the most successful institutions which have made ............considerable..... progress in gender equality ( consider )

5. In order to eliminate gender inequality, domestic ........responsibility......... need to be shared by both husband and wives ( responsible )

6. The number of female .........enrollments.......... has increased sharply for the past few years ( enroll )

7. My uncle is very ..........knowledgeable.......... about rhinos. He has studied about them for a long time ( knowledge )

8. By knowing their children’s strength and ........weakness.......... parents can find appropriate strategies to educate them( weak )

9. She contributed to the information of an .....organization.................. for female pilots, gave advice to women on careers and helped inspire others ( organize )

10. Even today, her life and career remain ........fascinating.......... to many people ( fascinate )

III. Rearrange the words / phrases to make meaningful sentences:

1. equality / essay / an / gender / on / be / written / must / by / student / each

An essay on gender quality must be written by each student.

2. processed / will / when / these / files / be ?

When will these files be processed ?

3. a / course / finished / must / in / a / maximum / be / of / weeks / four

A course must be finished in a maximum of four weeks.

4. serious / obesity / be / health / considered / be / to / a / problem / can

Obesity can be considered to be a serious health problem.

5. achievements / in / information / technology / and / will / made / be / scientists / mor / by

More and more achievements in informations and technology will be made by scientists.

27 tháng 5 2019

Fill in each gap with the correct form of a suitable VERB

Jane is a nurse, but she is trying (1)...to look for... a new job. Although she enjoys after people, nursing is not well- paid, and she can't afford (2)..to complete...... all her bills. She find its impossible (3)....to depend .... on such a low salary without overdrawing her account at the bank. Her flat needs heating, and she'd like (4)..to buy.... a car. She (5)..used.... to save enough last year for a holiday by (6)...spending.... some extra money in her spare time, and this year she is hoping (7)..to make.... some friends in France. She's stopped (8)..going... to the theatre, which used to be one of her greatest pleasures. She's (9)...capable.... of working in America, where she could earn a higher salary

1 tháng 4 2017

VIII . Turn the following sentences into the Passive :

1. Nick brings the pizzas to our house . -) The pizzas are brought to our house by Nick

2. You can t make tea with cold water . -) Tea .can't be made with cold water

3. We moved the boxes away from the window . -) The boxes were moved away from the window

4. They are helping Jane with the sewing . -) Jane is being helped with the sewing

5. He will solve the problems soon . -) The problems will be solved soon

6. They must pay the bill before May . -) The bill must be paid before May

7. He shouldn t do that silly thing . -) That silly thing shouldn't be done

8. Waiters are serving customers . -) Customers are being served by the waiters

Exam number 1: Fill in the blank with the suitable number Question 1: The expression is equal to .............. Đáp án của bạn Question 2: What number should be placed in the box to make? Đề thi Violympic Toán Tiếng Anh lớp 4 vòng 9 năm 2015 - 2016 Answer: ........... Đáp án của bạn Question 3: What is the remainder when 65870 is divided by 8? Answer: .............. Đáp án của bạn Question 4: Mya has 10000 dollars in bills of 40 dollars.How many 40 dollars- bills...
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Exam number 1: Fill in the blank with the suitable number Question 1: The expression is equal to .............. Đáp án của bạn Question 2: What number should be placed in the box to make? Đề thi Violympic Toán Tiếng Anh lớp 4 vòng 9 năm 2015 - 2016 Answer: ........... Đáp án của bạn Question 3: What is the remainder when 65870 is divided by 8? Answer: .............. Đáp án của bạn Question 4: Mya has 10000 dollars in bills of 40 dollars.How many 40 dollars- bills does she have? Answer: ............... 40 dollars- bills. Đáp án của bạn Question 5: A large box of candies and a small box of candies together cost 13 dollars. If the large box costs 5 dollars more than the small box, what is the price of the small box of candies? Answer: ............. dollars. Đáp án của bạn Question 6: Six students had an orange eating contest. The graph shows the number of oranges eaten by each student. Mary ate the fewest oranges and Jack ate the greatest. How many more oranges did Jack eat than Mary? Đề thi Violympic Toán Tiếng Anh lớp 4 vòng 9 năm 2015 - 2016 Answer: ............. oranges. Đáp án của bạn Question 7: The numbers from 1 to 1000 are written. How many of these numbers have at least two digits 5? Answer: .............. numbers. Đáp án của bạn Question 8: Five students do an exam with a maximum score of 50. The scores of four of the students are 41, 44, 46 and 49. The average of five students’ scores is the same as the score of the fifth student. The score of the fifth student is ............. Đáp án của bạn Question 9: Five years ago, Sarah was 7 years old. Two years later, she will be ............. years old. Đáp án của bạn Question 10: A fraction is equal to . The sum of its denominator and its numerator is 91. What is the difference between the denominator and numerator of this fraction? Answer: .............. Đáp án của bạn Exam number 2: Đi tìm kho báu Question 1: Nick has 3/5 of a dollar and Emma has 3/10 of a dollar. Together they have …………. a. $6/10 b. $8/10 c. $9/10 d. $15/10 Question 2: The value of 1/12 : 1/8 = …………. (Write your answer by fraction in the simplest form) Đáp án của bạn Question 3: The symbol Đề thi violympic toán tiếng anh lớp 4 vòng 9 is evaluated as 4 x 7 – 3 x 6 = 10. If Đề thi violympic toán tiếng anh lớp 4 vòng 9is evaluated as 29 then the number that should be replaced in the question mark is …………… Đáp án của bạn Question 4: The are of a rectangular garden is 36m2. Its has a length of 9m. Its perimeter, in metres, is …………….. Đáp án của bạn Question 5: Last year, Bob’s age is divided by 7. This year, his age is divisible by 5. In how many years will Bob be 27 years old? Answer: ……….. years. Đáp án của bạn Exam number 3: Cóc vàng tài ba Question 1: The value of 40 + 60000 + 500 + 30 is …………. a. 65070 b. 65430 c. 60570 d. 60543 Question 2: The average of the numbers 21, 23, 25 and 27 is ………………. a. 22 b. 23 c. 24 d. 26 Question 3: The perimeter of a rectangular is 3 times its length. If the perimeter is 120cm, the area of the rectangle is ………… a. 3200cm b. 800cm c. 800cm2 d. 3200cm2 Question 4: Which number should be replace the blank: Đề thi violympic toán tiếng anh lớp 4 vòng 9 a. 32 b. 96 c. 48 d. 24 Question 5: Sophia plants ten trees every three minutes. If she continues planting at the same rate, how long will it take she to plant 250 trees? a. 5/4 h b. 25h c. 3/4 h d. 75h Question 6: Anna scored 325 points during the badminton season. If her average point was 13 per game, how many games did she play? a. 25 b. 13 c. 26 d. 14 Question 7: If a machine produces 90 items in one minute, how many items would it produce in 20 second? a. 180 b. 20 c. 30 d. 60 Question 8: The digits 1, 2, 3, 4, 5 and 6 are each placed in one of the boxes so that the resulting product is correct. If each of the six digits is used exactly once, the digit represented by’?” is …………. Đề thi violympic toán tiếng anh lớp 4 vòng 9 a. 6 b. 2 c. 3 d. 4 Question 9: The average of five different natural numbers is 4. If the different between the largest and smallest of these numbers is as large as possible, what is the average of the other three numbers? a. 5 b. 2 c. 3 d. 6

giúp mình với mai mình kiểm tra rồi ( nhớ giải thích cách làm nhé )

1

cái này tui biết này ! tui cũng thi giải toán tiếng anh nhưng chỉ được cấp huyện còn cấp tỉnh ko biết   vòng huyện tui 780 điểm thời gian 441 giây và đạt giải nhì cậu ở hà nam hả tớ cũng thế