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Nowadays, environmentalists are so worried(1).....................environment problems that can (2).................... harm to people’s life . Among the problems mentioned every day, air (3).....................and water pollution are considered the most serious ones. There are many factors that cause the pollutionof air chemical from burned fuel, (4).................from automobikes and factories . Smoke can cause serious health (5).................... Raw sewage , water and oil contribute
to the pollution of water. When water is (6)................ it causes a lot of diseases and (7)....................marine wildlife. About billion people around world lack clean drinking water and every year, 5 million people die (8)................. diseases.
1. A. on B. about C. at D. of
2. A.does B. doing C. did D. do
3. A.pollution B. to pollute C. polluted D. pollutes
4. A. to smoke B. smoking C. smoke D. smoked
5. A.problems B. matters C. sollution D. difficulty
6. A.watered B. polluted C. littered D. saved
7. A.kills B. killing C. killed D. kill
8. A. at B. in C. about D. from

1.Mr Nam has lived in Nha Trang since 2007.
Mr Nam began …………………………….

2. The children are excited about going to the circus.
The children are looking ……………………….
3. He had a good salary, but he was unhappy in his job.
Although ………………………………………… 6. We can’t drink the coffee because it is extremely hot. The coffee ………………………………………………….
4. The last time we saw the film was 10 years ago.
We haven’t …………………………………………
5. We didn’t want to wake anybody up, so we came in very quietly.
We came in ……………………………………………..
6. Mr Brown was tired, so he didn’t go to the meeting.
Because of ……………………………………………….

12. My shoes are dirty . I’d better .................. them off before I come in.
A. put B. get C. push D. take
13. She didn’t stop working when she got married. (CLOSEST)
A. give up B. go on C. get into D. set in
14. You can look .................. a word in a dictionary if you don’t know what it means.
A. into B. for C. up D. over
15. I was late again .................I got up very early .
A. because B. so C. if D. though
16. The new ……………..air- conditioner doesn’t consume much electricity.
A. category B. label C. model D. set
17. Mrs Jones uses only two ordinary bulbs and she pays USS 8 ………….lighting.
A. with B. for C. in D. of
18. It takes thirty minutes to cook this dish. It is …………
A. profitable B. energy-wasting C. wasteful D. time-consuming
19. It was rainning; ………………,the soccer game was going on.
A. and B. but C. however D. therefore
20. Now consumers want ……...that will work effectively and save money.
A. produce B. produced C. products D. producers

IV. Choose the right word:
1. (Since / However / Even though) I try hard to play the piano, I don’t seem to improve.
2. He bought a car (though / so / because ) he was too young to drive.
3. I tried to persuade her (though / and / but) I didn’t succeed.
4. It was cold.( Therefore / However / Although) , I still went swimming.
5. Nga is a good student (but / because / so) she received a scholarship.
6. She failed her test(However / Though / Therefore) she has to do the test again.
7. John’s in a good shape physically (and / although / because) he doesn’t get much exercise.
8. (Because / Although / However) cars cause pollution, people still want them.
9. (As/ Although/ Therefore) it’s a public holiday, you won’t find any shops open.
10. Phong is in good shape physically (and/ though / because) he doesn’t get much exercise.
11. That hotel is expensive (but / though / so) its service is poor.
12. I still had a headache (but / because / although) I took an aspirin.

II. Complete the sentence with the one word given below. One word can be used for more than one sentence: for/ up / after/ on/ off / away / in /of / about /to /onto /with/ out / forward
1. She was tired because she stayed ………….late last night.
2. Don’t eat the meat on the table. It has gone …………It smells awful.
3. The ground is covered ………….. trash. You should clean …………the ground before leaving.
4. Please take ……………..your shoes when you go into the temple.
5. I used to smoke , but I gave it ………….last year.
6. You should reduce the amount …………..water your family uses.
7. The music is too loud. Please turn ……………the volume.
8. It’s the news. Could you please turn …………..the volume? I need to listen carefully.
9. His mother is worried…………this electricity bill this month.
10. If the pollution goes on, the world will end …………. like a second-hand yunk-yard.
11. I’m writing …………. you about the problem of catching fish in the lake behind my house.
12. I think we should not throw trash ……………. water because polluted water can do harm to people’s health.
13. If you don’t know this word, you can look it …………in the dictionary.
14. It was cold, so she put ……………her coat.
15. We are looking ……………to Tet holidays.
16. Nam got up late this morning because my alarm clock didn’t go …………
17. If we go ……………using more and more cars, we will run ………….of gas.

21. Solar energy can help people ......................the earth’s resources.
A. recycle B. conserve C. reuse D. volunteer
22. There are 40 students in this class. There are 20 school boys . They .................50%
A. go on B. look for C. account for D. place
23. They turned on the fans ......................it was hot.
A. so B. as C. but D. however
24. Today we have Math, History, English ...................Chemistry.
A. or B. and C. but D. therefore
25. We can .............an ordinary 100 watt light bulb with an energy-saving bulb to save electricity.
A. heat B. install C. store D. replace
26. I am .......................that people have spoiled this area.
A. disappoint B. diapponting C. disappinted D. to disappoint
27. There’s nothing good on TV. Why don’t you turn it .................?
A. on B. off C. down D. up
28. We should ………..energy by turning off all the lights when they aren’t necessary.
A. waste B. save C. minimize D. prohibit
29. .......................many households use energy-saving lights bulbs, their electricity bill is still enormous.
A. Since B. Although C. When D. If
30. If you ……………talking in class, you ‘ll be punished.
A. turn on B. look after C. take off D. go on
31. They have to pay a big water bill ……...………they let the faucets drip freely.
A. because B. so C. and D. however
32. He suggested ……………..the gas bill on time.
A. paying B. she should pay C. that she should pay. D. A,B,C are correct

4. A …………..faucet can waste a lot of water a month.
A. running B. dripping C. cutting D. dropping
5. Energy can be collected by solar …………….on cloudy days.
A boards B panels C bars D sheets
6. All the houses in our villages will be ……………..by the solar energy.
A heated B spoiled C frozen D widened
7. In my family, lighting accounts ………..20% of the electricity bill.
A. of B. to C.in D for
8. In order to save electricity, an ordinary 100-watt light bulb can be replaced by a(an)…..... bulb.
A. energy-saving B energy-save C saving-energy D save-energy
9. Paul isn’t going to the concert ………………the tickets are too expensive.
A though B however C because D and
10. Nga is very tired. …………., she has to finish her homework before she goes to bed.
A Though B Because C Therefore D However
11. “My father couldn’t fix the TV set”. “....................send for a repairman?”
A. Let’s B. What about C. Why don’t you D. I suggest
12. An enormous amount of money has been waste in this project.
A. very important B. very large C. very small D. very limited
13. Ultimately, you ‘ll have to make the decision yourself.
A. Consequently B. Basically C. Generally D. Finally.
14. .................can be cheap, clean, effective source of power that doesn’t cause pollution.
A. Nuclear B. Gas C. Solar energy D. Coal
15. Nga failed her English exam. .................., she had to do it again.
A. Because B. But C. Therefore D. However