. Choose the correct word:
8. I lost my pen. I have looked ………..it for all morning. (at/ after/ up/ for)
9. She stayed at home because she has to look ………her baby. (at/ after/ up/ for)
10. Remember to turn ……….the light before going to bed. (of/ off/ on/ up)
11. Can you turn ………the light? It’s too dark. (on/ off/ in/ for)
12. Can you turn …….the radio? I’m learning my lessons. (on/ off/ in/ for)
13. If we go …………littering, the environment will become seriously polluted. (to/ in/ out/ on)
14. A new air conditioner will be ……….this morning. (install/ installed/ installing/ to install)
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 ………….he wants to send a letter. (because/ but/ and/ moreover)
17. She broke the vase because she was ……..(careful/ carefully/ careless/ carelessly)
18. They learn English ………………they intend to go abroad. (and/ or/ so/ because)
19. His hobbies are playing soccer ………………collecting stamps. (and/ but/ however/ although)
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…………………..she likes to travel light. (so/ but/ because/ therefore)
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)
30. Energy-saving bulbs should be used to ….electricity. (spend/ buy/ waste/ save
