7. I want to see the. protection)

8. I lost my pen. I have looked

9. She stayed at home because she has to look ....her baby. (at/ after/ up/ for)

10. Remember to turn .....

11. Can you turn ........the light? It's too dark. (on/ off/ in/ for)

12. Can you turn .

13. If we go ..off the gas before going out. (turn/ turning/ to turn/ turned) ..money for the poor people in our neighborhood. (save/ to save/ saving/ saved) .air poolution. (reduce/ reducing/ reduced/ to reduce) ..of environment from the local authority. (protect/ protected/ protecting/ ...it for all morning. (at/ after/ up/ for) .the light before going to bed. (of/ off/ on/ up) ..the radio? I'm learning my lessons. (on/ off/ in/ for) .littering, the environment will become seriously polluted. (to/ in/ out/ on)

14. A new air conditioner will be

15. If people stop using dynamite for fishing, a lot of sea creatures will be well .. .(preserve/ preservation/ preseved/ preservative)

16. he is going to the post office

17. She broke the vase because she was ...(careful/ carefully/l careless/ carelessly)

18. They learn English

19. His hobbies are playing soccer

20. I'd love to play volleyball ....I must complete my homework. (since/ moreover/ but/ and)

21. Scientists are looking for an ...way to reduce energy consumption. (effect/ effection/ effective/ effectively)

22. She won't take all these suitcases.

23. What can we do to spend less...lighting? (in/ on/ about/ of)

24. You should take...your shoes when you go into the temple. (in/ on/ off/ of)

25. Who looks ...your children when you are away from home? (for/ at/ after/ to)

26. I wear a hat .. .I don't want to be sick. (because/ but/ therefore/ and)

27. He got wet ...he forgot his umbrella. (because of/ because/ but/ and) 28. I suggest organizing a show to ...money. (exchange/ grow/ raise/ rise) 29. If we ...wasting electricity, we will have to pay a lot next month. (turn on/ go on/ come on/ live on)