III. Choose the best answer:
11. more information, please telephone our main office.
A. If you will need B. Should you need
C. You should need D. If you needed
12. If Jack refuses to help, we manage without him.
A. have to B. will have to
C. had to D. are having to
13. I cannot buy a new computer I save enough money.
A. if B. even if C. unless D. as if
14. You will get a good seat if you first.
A. come B. came C. have come D. will come
15. We’ll be late unless we now.
A. leave B. don’t leave C. had left D. have left
16. We can reuse .
A. water B. air C. noise D. bottles
17. What does “reduce” mean?
A. using something again B. using something more
C. using something less D. collect something
18. What does “reuse” mean?
A. using something again B. using something more
C. using something less D. collect something
19. We shouldn’t rubbish on the street.
A. throw B. reuse C. wrap D. turn off
20. Polluted water can make fish .
A. live B. sleep C. grow D. die
21. We can use empty to make pencil boxes.
A. paper B. bottles C. bulbs D. plastic bag
22. Turn the lights when we go out.
A. of B. off C. on D. up
23. People should stop using so energy.
A. more B. less C. many D. much
24. Planting more to reduce pollution.
A. does B. flowers C. trees D. grass
25. means giving things to people in need.
A. Swap B. Charity C. Reuse D. Recycle