mọi người giúp em ạ, em đang cần gấp 😢

50 + 60 + 40 + 20 + 30

= ( 50 + 20 +30 ) + ( 60 + 40 )

= 100 + 100

=200

K MIK NHE

CHÚC BN HỌC GIỎI

4 phần x-2 trừ x cộng 2 = 0

I. Choose the suitable words or phrases to complete the sentences
1. The _______ place for a compost heap is a place that gets sun and shade.
A. good B. best C. bad D. worst
2. What does she mean _______reduce?
A. by B. with C. from D. at
3. They also collect household and garden waste to make _______
A. fabric B. garbage C. compost D. glassware
4. _______ can be recycled to make pipes and floor coverings.
A. Cans B. Tires C. Glass D. Compost
5._______ means not buying products which are over-packaged.
A. Reduce B. Package C. Recycle D. Reuse
6. These shoes are made _______ old cars tires.
A. of B. from C. in D. at
7. ‘Vegetable matter’ is made _______ compost.
A. into B. for C. from D. up
8. Are you interested ________ protecting the environment?
A. on B. in C. at D. for
9. It’s difficult __________ Japanese.
A. learn B. learning C. to learn D. for learning
10. The result _________ next week.
A. will know B. will be known C. is know D. was known
11. The application should _______ to the main office.
A. be sent B. send C. to send D. be sending
12. Silver ________ for ornaments, jewelry and coins.
A. used B. use C. uses D. is used
13. Your handwriting is difficult ________.
A. read B. reading C. to read D. read
14. It is impossible _________ his theory.
A. to understand B. understand C. understanding D. understood
15. You mustn’t ________ this parcel until Christmas Day.
A. opening B. open C. to open D. opened
16. I’m sure that he _______ the game.
A. win B. will win C. won D. will be won
17. _______ means to put used objects or materials through a special process so that they can
be used again.
A. Reusing B. Recycling C. Reducing D. Returning
18. Yesterday, I threw _______ all the broken toys.
A. aside B. down C. away D. in
19. _______ is a waste from the body of a large animal such as an elephant or a cow.
A. Dung B. Compost C. Garbage D. Fertilizer
20. If people are interested in protecting the ______, our earth will be greener and cleaner.
A. neighborhood B. environment C. residence D. living

II. Supply the correct tense or form of the verbs in parentheses

1. Glass ___ ___ from sand. (make)
2. What did they do to prevent people from ____ ___ drink cans away? (throw)
3. We will phone you as soon as we ____ ___ in Hanoi. (arrive)
4. Are you looking forward to ____ __ on holiday? (go)
5. Tea can ____ ____ with hot water. (make)
6. Miss Linda asked the students ___ ___ things away. (not throw)
7. He doesn’t enjoy ___ ___ at by other people. (laugh)
8._____ ___ you ____ ____ Nam recently? (meet)
9. Beer used ___ ____ for breakfast in England years ago. (drink)
10. I __ ___ a bicycle made in Japan. (just buy)
III. Supply the correct form of the words in parentheses
1. Compost is a wonderful ____ ___. It helps plants grow. (fertilize)
2. We are waiting for the ____ ___ of his plane. (arrive)
3. They showed us how to protect the environment and save ___ __ resources. (nature)
4. Reduce means not buying products which are ___ ___. (package)
5. Glass is broken up, melted and made into new ___ __ (glass)
6. People have developed many different paper __ __. (produce)
7. These products are _____ ____ friendly. (environment)
8. Linda is one of the most famous ____ ___ in the world. (environment)
9. Linda is one of the __ ___ from Friends of the Earth. (represent)
10. We are delighted that you passed your English exam. ___ __! (congratulate)
IV. Find the errors
1. I’d like to tell you about several problems I have had for I came here.
A B C D
2. He walked into the room quietly so as to not disturb his friends.
A B C D
3. I knew him since we were kids.
A B C D
4. He asked the tourist information officer suggesting where he could go.
A B C D
5. The house hasn’t been repairing since it was built.
A B C D
6. They should study harder in order that pass the final exam.
A B C D
7. Contact an organization for information, going to your local library, or ask your friends.
A B C D
8. What happens to the glass when it sends to the factories?
A B C D
9. It was brave for him to jump into the river to save the child.
A B C D
10. Aluminum is a valuable metal that can be recycled and use again and again.
A B C D
V. Write the second sentence so that it has a similar meaning to the first sentence
1. People play football all over the world.
 Football …………………………………………………………………………………
2. Our teacher will form a class discussion next Monday.
 A class discussion ……………………………………………………………………..
3. We can’t wear jeans at work
 Jeans …………………………………………………………………………………….
4. Do they speak French and English in Canada?

 Are ………………………………………………………………………………………
5. The company employs two hundred people.
 Two hundred people ………………………………………………………………….
6. I remembered my mother’s birthday. She was so delighted.
 My mother ………………………………………………………………………………
7. They were happy that they won the cup.
 They were ………………………………………………………………………………
8. You are interested in protecting the environment. We are delighted.
 We are ………………………………………………………………………………….
9. I’m very sad that I wasn’t accepted in that group.
 I’m very sad not ………………………………………………………………………..
10. He was delighted to receive his aunt’s letter.
 He was delighted that his …………………………………………………………….

I. Choose the suitable words or phrases to complete the sentences

1. We want to share our recycling story with our________.

A. reading B. reader C. readers D. read

2. Air is a ______ of gases.

A. mix B. mixing C. mixture D. mixed

3. This is our new ________. Please try it!

A. production B. produces C. producing D. product

4. We are _______ that you are interested in protecting the environment.

A. delight B. delighted C. delighting D. delights

5. Mix them with certain specific ________.

A. chemistry B. chemicals C. chemist D. chemist’s

6. Contact an organization _______ Friends of the Earth ______ more information.

A. in – on B. for – on C. of – for D. like – for

7. Don’t throw things ______.Try and find another use ______ them

A. away – for B. away – in C. off – on D. off – for

8. We can look ____ information ______ recycling things in the local library.

A. after – for B. for – on C. up – in D. into – for

9. Milk ______ to houses by the milkman every day.

A. brings B. is bring C. is brought D. has brought

10. We were delighted _____ your letter last week.

A. getting B. to get C. get D. got

11. Milk bottles can be ______ after being cleaned.

A. recycled B. thrown away C. broken D. reused

12. One ton of recycled paper ______ approximately eight trees.

A. saves B. save C. is saving D. are saving

13. This project _____ next month.

A. are carried out B. carries out C. will carry out D. will be carried out

14. It’s dangerous ______ in that river.

A. swim B. to swim C. swimming D. swam

15. We are looking forward to _____ you in June.

A. seeing B. see C. saw D. be seen

16. Glass is broken up, melted and made ______ new glassware.

A. in B. to C. into D. from

17. I think we should use tree leaves such as banana leaves, lotus leaves, etc. ______ things.

A. to wrap B. to soak C. to recycle D. to protect

18. Clothes belong to ____ group. We can recycle them and make them into paper or shopping bags.

A. compost B. fabric C. junk D. vegetable matter

19. Melt the mixture ______ it becomes a liquid.

A. until B. when C. after D. before

20. My sister likes sweets ______ from chocolate.

A. make B. to make C. made D. making

II. Supply the correct tense or form of the verbs in parentheses

1. We _____ ____ TV at 7.30 last night. (watch)

2. Look! The cat _____ __ your breakfast. (eat)

3. I ____ ____ my homework. (just / finish)

4. I __ _ the camera back to you after I _ __ from my holiday. (bring / return)

5. What time ___ __ your train _____ ____ tomorrow? (leave)

6. When I was at school, I always _____ ____ to do a job which was useful. (want)

7. Water ___ ____ at 100 degrees Celsius. (boil)

8. Listen to these people. What language __ __ they __ __? (speak)

9. Young children should not ___ ___ to go swimming by themselves. (allow)

10. She ___ ____ here for a long time. (live)

III. Supply the correct form of the words in parentheses

1. Farmers often use chemical ___________ to make plants grow well. (fertilize) fertilizers

2. We finished the job, but only with great ______________ . (difficult) difficulty

3. They had a ______________ time in Ha Long Bay last summer. (wonder) wonderful

4. Their company has two ______________ in every city. (represent) representatives

5. Then the liquid is blown into ______________ shapes. (intend) intended

6. Some ______________ resources cannot be replaced. (nature) natural

7. Their latest CD is a ______________ of old and new songs. (mix) mixture

8. We hope that the __________ will announce tax proposals today. (govern) government

9. Paper ______________ such as cardboard containers, wrapping paper and office paper can be recycled. (produce) products

10. We’re _____________ that no one was injured in the car accident. (pleasure) pleased

IV. Find the errors

1. It is not difficult in speaking English, just practice frequently.

A B C D

2. Instead of reuse plastic bags, we shouldn’t use them at all.

A B C D

3. How long does it takes before you can use the compost?

A B C D

4. In the USA, millions of old car tires are throw away every year.

A B C D

5. Tires can recycle to make pipes and floor coverings.

A B C D

6. Nowadays, many people wear shoes and sandals made by old car tires.

A B C D

7. If you have a recycled story to share, how can you share it?

A B C D

8. I’m certain that there are not trains from Hanoi on Saturdays.

A B C D

9. Write to me soon to confirm your arrived date and time.

A B C D

10. We can reuse things as envelopes, glass, plastic bottles and old plastic bags.

A B C D

V. Write the second sentence so that it has a similar meaning to the first sentence

1. Somebody cleans the room every day.

ð The room ……………………………………………………………………

2. How do people learn languages?

ð How _____ __________________

3. Mr. Robinson teaches us how to speak English.

ð We _______ _____________

4. Your teacher must sign this form.

ð This form _______ ____________

5. John will collect me at the airport.

ð I ______ ______

6. Her mother will visit her tomorrow. That makes her happy.

ð She is _____ ________________

7. He became a famous film star. That surprised us.

ð We were ______ ________________

8. We heard about your father’s illness. We were sorry.

ð We were _______ ____________________

9. Peter passed all the exams. He was lucky.

ð Peter was __________ _________________

10. Answering these questions is not easy.

ð It is not __________ ___________