giúp em với ạ. em cảm ơn nhiều lắm.

I. Change these sentences to the passive voice :

1. Janet gave Mary and her little cousin two teddy bears on their birthday by coincidence.

2. Pollution and chemicals from the factories have been polluting the environment.

3. Mr. Jones has just sold the old house at the end of the road.

4. They are building a ring road in the other side of the city.

5. The city dwellers mustn’t throw rubbish very carelessly

6. You should keep these flowers in a warm sunny place.

7. The committee will have to change the day of the meeting again.

8. Many people speak English all over the world.

9. A businessman will buy many houses in that area next year.

10. The reporter is interviewing the eight-form students at the moment.

11. They have kept these boxes of chocolates for three weeks.

12. Our teacher corrects our homework on the blackboard every day.

13. The workers will build a supermarket beside the school next year.

II. Read these following passages and choose the best answers :

Paper is everywhere. We use it for homework, moneys, books, letters and greeting cards. We print the news (1) _______ on newspaper. Without paper, our lives (2) ________ completely different. .The principal ingredient in paper is wood pulp. There are also other kinds of paper made from rice, cotton, corn and other plants. Paper from wood pulp is the most common . Because paper is made from wood, (3) ___________ are becoming concerned that too many trees are being cut down every year in order to produce paper. Trees are an important part of the environment. Some companies are using old paper instead of new wood pulp to make paper. This is called recycling. Recycling paper helps the number of trees that are used every year. Many people also try to use (4) ____________ paper in their daily lives. They keep sheets with (5) __________ page for drafting. They have a separate wastebasket for waste paper. Then this paper is collected (6) __________. Whether we use little or a lot, paper has an important place in our lives.

1. A. today B. every day C. tomorrow D. nowadays

2. A. are B. were C. would be D. will be

3. A. environmentalists B. plumbers C. teachers D. consumers

4. A. much B. a lot of C. little D. less

5. A. one-side printed B. printing one-side C. printing-single D. single-printed

6. A. to recycle B. in order to recycle C. to be recycled D. for being recycled

III. Fill in each blank of with ONE suitable word :

Plastics are more difficult to (1) _____________ than metal, paper or glass. For effective recycling, the other types cannot be mixed. Plastics can be (2) ____________ into cafeteria trays, combs and other items. Glass containers are (3) ____________ most commonly recycled form of glass and their colors are clear, brown and green. The recycled glass is (4) ____________ at high temperature and formed into new products.

Paper (5) _____________ such as cardboard containers, wrapping paper and office paper can be recycled. The most

commonly recycled paper is newsprint. In newspaper recycling, old newspaper are (6) ____________. The paper is

first (7) _____________ with hot water and turned into pulp in a machine. This machine (8) _____________ like a big

kitchen blender. The pulp then goes to a large container. The ink rises to the surface and is taken (9) ____________ from

the pulp. The cleaned pulp is mixed with new wood pulp to be (10) _____________ into paper again.

I. Rewrite each of these sentences, keeping the meaning unchanged :

1. Customers have to pay the bill at once before leaving the restaurant.

-> The bill

2. Many people speak English as a second language over the world.

-> English

3. Working in those conditions is impossible for me.

-> It’s

-> I

4. I will repair your bicycle tomorrow afternoon.

-> Your

5. “Don’t throw things away”, Miss Blake said to the students.

-> Miss Blake

6. Penicillin can cure many dangerous diseases.

-> Many

7. Does your country export rice to Britain ?

-> Is rice

8. She’s very pleased to see her grandparents soon.

-> She is looking

9. We find it difficult to answer this question.

-> This question

-> We have

10. I was very delighted that I passed the entrance exam.

-> I was very delighted

11. No one has opened that box for the last hundred years.

-> That box

12. My parents sent me a lot of toys on my 1^st birthday,

-> I

-> I was

-> A

13. These women used to wear long dresses.

-> Long

14. People rumor that the King was afraid of his wife.

-> The King

-> It is

15 Teachers made their students work very hard in exam time.

-> Students

16. As a representative from my class, I would like to discuss about this problem.

-> On

17. Children like walking in the rain.

-> (INTERESTED)

-> (ENJOY)

-> (EXCITED)

-> (FOND)

-> (FASCINATED)

18. Turn off all the lights before leaving the room.

-> All the

19. There were a lot of people at the discotheque.

-> The discotheque

20. I have never known that man before.

-> That man