I. Choose the best answer to complete each of the following sentences.
1. If people ______ public transport, there will be less pollution.
A. use B. will use C. can use D. used
2. ______we miss the last bus, we will have to walk home.
A. As B. When C. If D. Unless
3. People have ________this beach with a lot of trash.
A. spoiled B. cleaned C. collected D. protected
4. He got a ________ for packing on double yellow lines.
A. fee B. ticket C. fine D. token
5. By sticking labels over the address you can _______. envelopes.
A. recycle B. reduce C. reuse D. return
6. Because plastic bags are very hard to ________, they will cause pollution.
A. dissolve B. wrap C. tear D. collect
7. These materials can be _____ into other packaging products.
A. reused B. reduced C. removed D. recycled
8. If we _______waste paper, we will save a lot of trees.
A. repeat B. recycle C. rewrite D. remake
9. If we plant more trees in the schoolyard, the school will become a_____ place.
A. greener B. darker C. dirtier D. more polluted
10. “Why do you often forget to_______ the lights when you go out of the classroom?”
A. reduce B. turn off C. close D. shut down
11. “What can we do ____ air pollution?”
A. reduce B. to reduce C. reducing D. to reducing
12. You can save money while shopping by only buying _______ you need.
A. what B. a C. this D. that
13. Please collect all recyclable materials, and take them to the ______. factory.
A. recycle B. recycled C. recyclable D. recycling
14. This newspaper is made of _______paper.
A. recycle B. recycled C. old D. waste
15. If we all use _______ bags, we’ll help the environment.
A. new B. cheap C. reusable D. reduced
16. These three Rs _________ reduce, reuse and recycle.
A. stand up B. stand for C. ask for D. means
17. If there is a rubbish bin in every class, the classroom will become ______.
A. harmful B. lighter C. dirtier D. cleaner
18. “Don’t throw rubbish into the river because you will make it _________”
A. greener B. dirty C. cleaner D. fresher
19. If we use ________ paper, we will save a lot of trees.
A. fewer B. less C. more D. much
20. I __________ you if you need my help.
A. am helping B. could help C. will help D. helped
21. If someone ______ into the store, smile and say, “May I help you?”
A. comes B. came C. will come D. would come
22. If you ______all of my questions, I______ anything to help you.
A. don’t answer / can’t do B. didn’t answer/ won’t do C. wouldn’t answer/ can’t do D. wouldn’t answer/ couldn’t do
23. “Here’s my phone number.” - “Thanks, I_____ you a call if I _____some help.”
A. will give / will need B. would give/ needed C. give/need D. will give/ need
24. The teacher was absent today, so the class was canceled. If she_____ absent again tomorrow, class _____tomorrow, too.
A. is / will cancel B. is/ will be canceled C. was / would be canceled D. was/ would cancel
25. I won’t lend you this money ______ you promise to pay it back.
A. in case B. if C. otherwise D. unless
26. _____there are some more ideas, we can end the meeting now.
A. Unless B. If C. As if D. In case
27. “It’s really raining.”“Yes. If the weather______, we’ll have to camp somewhere else.
A. would get worse B. might get worse C. gets worse D. should get worse
28. If anyone _______, _______him I ______ back at 9 o’clock.
A. calls / tell / will be B. called / telling / would be C. is calling / tells / am D. will call / to tell / am
29. If she asks for money, I _______ her.
A. will give B. gave C. would give D. would have given
30. If I _______this exam, I’ll go to the university next summer.
A. pass B. to pass C. had passed D. passed
31. ________more information, please telephone our main office.
A. If you will need B. Should you need C. You should need D. If you needed
32. If Jack refuses to help, we ______ manage without him.
A. have to B. will have to C. had to D. are having to
33. I cannot buy a new computer_______ I save enough money.
A. if B. even if C. unless D. as if
34. You will get a good seat if you _____ first.
A. come B. came C. have come D. will come
35. We’ll be late unless we ____ now.
A. leave B. don’t leave C. had left D. have left
36. We can reuse _______ .
A. water B. air C. noise D. bottles
37. What does “reduce” mean?
A. using something again B. using something more C. using something less D. collect something
38. What does “reuse” mean?
A. using something again B. using something more C. using something less D. collect something
39. We shouldn’t _____ rubbish on the street.
A. throw B. reuse C. wrap D. turn off
40. Polluted water can make fish _____.
A. live B. sleep C. grow D. die
41. Soil pollution can lead to lack __________ food.
A. for B. in C. on D. of
42. Almost 27,000 trees are cut __________ every dayjust to make toilet paper!
A. off B. down C. up D. in