11. To keep the air unpolluted, people ought to use ____ energy to create electricity. (sun)
12. There have been many ____  in the field of electrical engineering.(innovate)
13. Televisions, dishwashers and freezers are electrical ____. (apply)
14. No doubt that there will be a great ______ of food for the world's population. (short) 
15. If there is something wrong with the lights, ask an _____ to look at it. (electric)  
16. An old friend of mine felt amazed at the prize for her efforts at ____ in her country. (conserve)
17. The campaign against air pollution was organized by a famous _____ activist. (environment)
18. She carries a gun in her bag for personal ____. (protect)
19. Energy ____ is a problem all over the world. (conserve)
20. As it hasn't rained for months, there has been a serious____ of fresh water. (short) 

M.n giúp em với, em đang cần gấp ạ

1. A complaint letter should be ended .................. (polite)

2. It's time- ................ to play games online. (consume)

3. Consumer always want cheap and effective ................. . (produce)

4. Air ................ is often seen as a major anvironmental result of modern living. (pollute)

5. What does the poet want us to learn about ..................... the evironment unpollted ? (keep)

6. ................ trash will pollute the air. (burn)

7. There have been many .............. in the flied of electrical engineering. (innovate)

9. What should we do to keep the environment .................. ? (polltue)

10. Mr.Ha has just fixed the ............... faucet. (drip)

11. The .................. are always right. (consume)

12. This machine is working ............... (effect)

13. What should we do to reduce air ................? (pollute)

14. I am very ............. that I'll go to Hanoi tomorrow. (excite)

15.................. are interested in the protection of the forests. (conserve)

16. The beach needs to be .......... cleaned up. (care)

17. How can we do to keep the environment ..................... ? (pollute)

18. There are more and more ............... problems nowadays. (environment)

19. The government has plans to ................. this city. (modern)

20. We should make the most efforts to stop ................(forest)

I. Complete the sentences with the correct form of the words in brackets.
1. In order to keep our environment ............ , we shouldn’t drop litter in public places. (pollute)
2. Don’t pump ............ into seas and rivers or it will pollute them. (sew)
3. Don’t throw away ............ bottles, papers, and glass. Take them to recycling centres. (use)
4. If we keep on ............ the air, more people will suffer from respiratory diseases. (pollution)
5. The local authorities have received many letters of ............ about the industrial wastes from that factory. (complain)
II. Complete the sentences with the correct form of the words in brackets.
1. Ba was ............ ill right after eating those ............ mushrooms. (serious / poison)
2. ............ are interested in the protection of the environment. (conserve)
3. Without ............ , some people wouldn’t catch fish. (electric)
4. Shhh. Listen ............ to the conservationist teaching us how to protect the environment. (care)
5. What is responsible for the ............ problems in your city? (environment)
III. Complete the sentences with the correct form of the words in brackets.
1. Make sure the use of ............ is not harmful to farm workers’ health. (pest)
2. ............ ! You have successfully held the clean-up campaign. (congratulate)
3. Use public transport or we won’t ............ pollution. (minimum)
4. If ............ continues, there will be no forest left ten years from now. (forest)
5. The rising level of air pollution has caused concern among ............ . (environment)

Use the correct form of the word given at the end of each sentence:

1) If we keep on ... the air, more people will suffer from respiratory diseases. (pollution)

2) ... are interested in the protection of the environment. (conserve)

3) We find advertising on television very ... . (effect)

4) Nobody likes him because he's so ... . (considerate)

5) His generosity ... him from others. (distinguish)

6) Who encourages the use of ... friendly products? (environment)

7) One of the most important ... for Vietnamese people is Tet. (celebrate)

8) Many chemicals have a ... effect on the environment. (disaster)

9) That is the girl who luckily escaped from a ... eruption last month. (volcano)

10) The ... of their house left them no place to live. (destroy)

11) That tsunami was the most ... of the year 2004. (disaster)

12) Since the world's energy resources are limited, we must ... them. (conservation)

13) These ... will conserve the Earth. (innovate)

14) ... is now a serious problem in Viet Nam. (forest)

15) We are trying to prevent a(n) ... world. (pollute)

16) Vehicles also account for air ... in the cities. (pollute)

17) We should pay attention to genetic and ... influences on infant sleep. (environment)

18) We are responsible for the truth that our forest is being ... . (destroy)

19) Sometimes it can be difficult to stay motivated and ... at work. (effect)

20) The company is trying to create a young ... image. (energy)

21) Thomas Edison is one of The 12 greatest ... of all time for inventing the first long-lasting light bulb. (innovate)

22) Because of being an ... person, he has made that mistake. (experience)

23) Energy ... should be reduced. (consume)

24) We were all impressed by the speed and ... of the new system. (efficient)

25) My ... is to earn more money to help my family. (prior)

26) There have been many ... in the field of electrical engineering. (innovate)

27) Mount Pinatubo was the world's largest ... eruption in more than 50 years. (volcano)

28) The new law will become ... next week. (effect)

29) Speech ... human being from the animals. (distinct)

30) Thousands of people were ... killed in that morning. (disaster)

31) Teacher's Day has been ... widely since 1982. (celebrate)

32) Thousands of people died in the ... . (disastrous)

33) They always show an understanding of what ... want. (consume)

34) We worry about the ... effects that violent films have on children. (destroy)

35) Earthquakes often come together with volcanic ... . (erupt)

36) All this shows that the machine works ... . (effective)

37) People must learn about keeping the environment ... . (pollute)

38) Halloween is an interesting festival which is ... in many countries. (celebrate)

39) His ... is always his family. (prior)

40) I am so ... with my result of last exam. (satisfy)

41) Everything is going ... . (satisfy)

42) By the year of 2015, all the roofs will be ... by solar energy. (hot)

43) Thousands of people were saved because ... have warned about the eruption. (science)

44) Henry ... himself on his ability to predict what the weather will be like. (proud)

45) We all try to prevent ... to protect our environment. (forest)

46) My brother was ... as the most effective activist in the school charity program. (nomination)

47) He is still young, but he is an ... doctor. (experience)

Word form:

1) Mount Pinatubo was the world's largest ... eruption in more than 50 years. (volcano)

2) The new law will become ... next week. (effect)

3) Speech ... human being from the animals. (distinct)

4) Thousand of people were ... killed in that morning. (disaster)

5) Teacher's Day has been ... widely since 1982. (celebrate)

6) Thousand of people died in the ... . (disastrous)

7) They always show an understanding of what ... want. (consume)

8) We worry about the ... effects that violent films have on children. (destroy)

9) Earthquakes often come together with volcanic ... . (erupt)

10) All this shows that the machine works ... . (effective)

11) People must learn about keeping the environment ... . (pollute)

12) Halloween is an interesting festival which is ... in many countries. (celebrate)

13) If we keep on ... the air, more people will suffer from respiratory diseases. (pollution)

14) ... are interested in the protection of the environment. (conserve)

15) We find advertising on television very ... . (effect)

16) Nobody likes him because he's so ... . (considerate)

17) His generosity ... him from others. (distinguish)

18) Who encourages the use of ... friendly products? (environment)

19) The company must reduce costs to compete ... . (effect)

20) If you are ... with your essay, I suggest you rewrite it. (satisfy)

21) He has been ... as the representative of his company. (normination)

22) ... friendly energy sources include water and wind power. (environment)

23) A tidal wave is strong enough to cause ... . (destroy)

24) There are twenty ... for that job. (apply)

25) Are you writing a ... letter to our local authority? (complain)

26) There have been many ... in the field of electrical engineering. (innovate)

27) The most ... earthquake occured in Japan in 1923. (disaster)

28) Most buildings in this city are ... by solar energy. (hot)

29) I hope that everything go on ... . (satisfy)

30) My sense of humor ... me from others. (distinction)

31) Vehicles also account for air ... in the cities. (pollute)

32) We should pay attention to genetic and ... influences on infant sleep. (environment)

33) We are responsible for the truth that our forest is being ... . (destroy)

34) Sometimes it can be difficult to stay motivated and ... at work. (effect)

35) The company is trying to create a young ... image. (energy)

36) Thomas Edison is one of The 12 greatest ... of all time for inventing the first long-lasting light bulb. (innovate)

IV/ WORD FORMS:
1. Water is going all over the floor because of the _________________ faucet. (drip)

2. You can ask that plumber for __________________on how to repair the cracks in the water
pipes. (advise)
3. To keep the air unpolluted, people ought to use___________________ energy to create
electricity. (sun)
4. Here is the weather forecast for tomorrow. Ha Noi will be clear and ___________________.(cloud)
5. She is said to be ________________. She always does her job well . (efficiency)
6. Can I borrow your __________________dress? It’s been in the wardrobe for show since you
bought it. (use)
7. If there is something wrong with the lights, ask an ___________________ to look at it.
(electric)
8. There have been many ____________________ in the field of electrical engineering.
(innovate)
9. The high cost of heating and ______________________ prevents us from wasting electricity.
(light)
10. We must learn to save _______________ resources or life will be very bad for the future
generation. (nature)
11. In a few years’ time, our houses will be________________ by solar energy. (hot)
12. _______________are very demanding. They want products that are both cheap and of good
quality. (consume)
13. It is going to rain and the sky is __________________ ( cloud ) .
14. He often has improvements in industry . He is an _______________ (innovate)
15. Jogging is a very ________________________ form of exercise ( energy )