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Ex4. Read the following passage and decide if it is T or F. Many people still believe that natural resources will never be used up. Actually, the world’s energy resources are limited. Nobody knows exactly how much fuel is left. However, we also should use them economically and try to find out alternative sources of power. According to Professor Marvin Burnharm of the New England Institude of Technology, we have to start conserving coal, oil and gas before it is too late; and nuclear power is the only alternative. However, many people do not approve of using nuclear power because it’s very dangerous. What would happen if there was a serious nuclear accident? Radioactivity causes cancer and may badly affect the future generations. The most effective thing is that we should use natural resources as economical as possible. 1. Natural resources will run out. A. True B. False 2. We should use fuel economically. A. True B. False 3. The world’s energy resources are unlimited. A. True B. False 4. According to Professor Marvin Burnham, nuclear power will be used as a substitute for natural resources. A. True B. False . Choose the correct sentence among (A, B, C or D) that uses the words given. 1. Keep/ environment/ clean / very important. A. Keeping environment is clean and very important. B. Keeping environment clean is very important. C. Keeping the environment clean is very important. D. Keeping the environment clean is important. 2. The town/ far/ than /we thought. A.The town is farer than we thought. B. The town is farther than we thought. C. The town is farthest than we thought. D. The town is far than we thought. 3. We / better / eat / too / fatty food / because / it / not good / our health. A.We had better eat too many fatty food because it is not good for our health. B. We had better not eat too many fatty food because it is not good for our health. C. We had better eat too much fatty food because it is not good for our health. D. We had better not eat too much fatty food because it is not good for our health. 4. My friend/enjoy/visit/art gallery/I/too. A. My friend enjoy visiting art gallery and I am, too. B. My friend enjoys visiting art gallery and I am, too. C. My friend enjoys visiting art gallery and I do, too. D. My friend enjoys to visit art gallery and I do, too. 5. I/ find/play/ soccer/ useful / because/ /I/ can/improve/ health. A. I find playing soccer useful because I can improve our health. B. I find playing soccer is useful because I can improve our health. C. I find playing soccer useful because I can improve my health. D. I find playing soccer is useful because I can improve my health. 6. This camera/ not/ expensive/ as/I /thought first. A. This camera is not as expensive as I thought first. B. This camera is not expensive as I thought first. C. This camera is not as expensive than I thought first. D. This camera is as expensive as I thought first. 7. Big Heart organization / encouraged / people / protect / environment/ so far. A. Big Heart organization encouraged people to protect the environment so far. B. Big Heart organization has encouraged people to protect the environment so far. C. Big Heart organization encourages people to protect the environment so far. D. Big Heart organization has encouraged people protect the environment so far. 8. My brother/ not like/ ice-skate/ because/ think/ it/ dangerous. A. My brother does not like ice-skating because he think it is dangerous. B. My brother does not like ice-skating because he thinks it is dangerous. C. My brother does not like ice-skate because he think it is dangerous. D. My brother does not like ice-skating because he think it dangerous. 9. We/ already/ ask/ people/ donate/ books / clothes / children. A.We have already asked people to donate books and clothes for children. B. We have already asked people to donate books and clothes to children. C. We have already askes people to donate books and clothes for children. D. We have already asked people donate books and clothes for children. 10. I / continue / my hobby / future / because / it / help/ save / environment. A. I will continue my hobby in the future because it helps save the environment. B. I will continue my hobby in future because it helps save the environment. C. I will continue my hobby in the future because it help save the environment. D. I will continue my hobby in future because it help save the environment.

Ex5. Rewrite these sentences begin with the words given so that they have the same meaning as the first ones. 1. My mother gave me a very nice watch yesterday. A. I was gave a very nice watch yesterday. B. I was give a very nice watch yesterday. C. I was given a very nice watch by my mother yesterday. D. I was give a very nice watch by my mother yesterday. 2. What a thick book! A. How thick the book is! B. How the book thick is! C. How the book thick! D. How thick book is! 3. Although he took a taxi, Peter arrived late for the concert. A. In spite of taking a taxi, Peter arrived late for the concert. B. In spite of taking a taxi, Peter arrives late for the concert. C. In spite taking a taxi, Peter arrived late for the concert. D. In spite of took a taxi, Peter arrived late for the concert. 4. I met Frank three years ago and we are still friends. A. Frank and I have been friends three years ago. B. Frank and I are friends three years ago. C. Frank and I have been friends for three years. D. Frank and I had been friends three years ago. 5. The garden party won’t take place here if the weather doesn’t improve. A. If the weather improves, the garden party won’t take place here. B. If the weather improves, the garden party will take place here. C. If the weather doesn’t improve, the garden party willt take place here. D. If the weather not improves, the garden party won’t take place here. 6. Do you have a cheaper computer than this?  Is this___________? A. the cheapest computer B. the cheapest computer you have C. the cheaper computer you have D. as cheap as computer 7. They had these men paint their house last month.  They had ___________ A. their house paint last month. B. their house painted last month. C. their house paint last monthby these men D. their house paints last month. 8. I haven’t eaten this kind of food before.  This is the first time ___________ A. I haven’t eaten this kind of food. B. I eat this kind of food. C. I haven’t eat this kind of food. D. I have eaten this kind of food. 9. I'll call the police if you don't___________ A. leave me alone. B. live me alone. C. left me alone. D. leaved me alone. 10. Jill drives more carefully than Jack does.  Jack drives ___________ A. less carefully than Jill is. B. less carefully than Jill does. C. less careful than Jill does. D. more carefully than Jill does. 11. We will use renewable energy in the future. A. Renewable energy will use in the future B. Renewable energy will be use in the future C. Renewable energy will be used in the future 12. Although they are short, they still love playing sports. A. In spite of they are short, they still love playing sports B. In spite of being short, they still love playing sports. C. Despite they are short, they still love playing sports 13. A group of foreigners visited the slums last week, didn’t they? A. A group of foreigners visit the slums last week, didn’t they? B. Did a group of foreigners visit the slums last week? C. A group of foreigners visit the slums last week? 14. This is our school. A. This school is mine B. This school is our C. This school is ours 15. Let’s go to the school cafeteria. A. We suggest to go to the school cafeteria. B. How about going to the school cafeteria? C. Why don’t we going to the school cafeteria? 16. What is the distance between Ha Noi and Vinh? A. How long is it from Ha Noi to Vinh? B. How is it from Ha Noi to Vinh? C. How far is it from Ha Noi to Vinh? 17. They will use solar energy to protect the environment. A. Solar energy will used to protect the environment. B. Solar energy will be used to protect the environment. C. Solar energy will using to protect the environment. 18. I find English interesting. A. I am interested in English. B.I find interesting English. C.I find English interested.