16. Cats sleep________the daytime and catch mice ________night.
　　　A. in; at B. at; in C. in; in D. at; at
17. Our students should take turns ________food in the dining room.
　　　A. buying B. bought C. buy D. to buy
18.________useful information it is!
　　　A. How B. How a C. What D. What a
19. --Could I look at your new coat? --Yes, of course you ________.
　　　A. may B. can C. will D. might
20. That boy doesn't know what________.
　　　A. does B. to do C. to do it D. doing
21. Tom's brother can cook the meal by________ .
　　　A. he B. him C. his D. himself
22. Tim has bad grades in geography. He is so _________.
　　　A. care B. careful C. carefully D. careless
23. I'm good at fishing and I can catch a fish________five minutes.
　　　A. with B. without C. for D. within
24. We________frighten the animals in the park.
　　　A. ought to B. ought not to C. will D. should
25. Tomorrow I will go swimming________fishing.
　　　A. instead go B. instead of going C. instead of go D. instead going
26. The boys are________ in this________ basketball game.
　　　A. interested; interesting B. interested; interested
　　　C. interesting; interesting D. interesting; interested
27. Can you tell me________ make nice coffee?
　　　A. to how B. how C. to D how to
28. Do you know________he did not turn off the light?
　　　A. what B. how C. if D. why
29. You________the cat out for a walk.
　　　A. needn't to take B. don't need take C. don't need to take D. needn't taking
30. Don't________. We still have enough time.
　　　A. worry B. be worry C. worried D. get worry.

Key：1-5C B C C D 6-10 B A D B B 11-15 A A C A A 16-20 A D C B B 21-25 D D D B B 26-30 A D D C A