25. We must stop factories ______.

　　　 A. to make too much noise 　　　　　　B. from making too much noise

　　　 C. to make too many noise　　　　　　 D. make too many noises

24. The small town _____ just the same _____ it was long ago.

　　　 A. is; like　　　 B. still; as　　　 C. stays; as　　 D. remains; that

23. It is ______ that we'll win the first prize.

A. sure　　　　　 B. certain　　　　 C. sure of　　　 D. certain about

22. Whenever you are away, you must ______ the door

　　 A. be sure; is locking　　　　　　　　 B. make sure; is locked

　　 C. be sure; will be locked　　　　　　 D. make sure; will be locking

21. I've been staying at home instead of______ these days.

　　 A. going away　　　 B. leaving away　 C. gone away　　　 D. gone out

20. Either you or the headmaster_____ the prizes to these gifted students at the meeting.

　 A. is handing out　 B. are to hand out C. are handing out D. is to hand out

19. Paper produced every year is　 _____ the world's production of vehicles.

　 A. the three times weight of　　　 B. three times the weight of

　 C. as three times heavy as　　　　 D. three times as heavier as

18. --I've never heard such a thing.　 --_______.

　 A. Neither have I B. Nor haven't I　 C. So have I　　 D. So haven't I

17._______ do you think _____　 for the job?

　 A. Whom; is fit　 B. Who; is fit　 C. Who; fits　　　 D. Whom; fit

16. They don't think it's right to act like that, ________ ?

　 A. isn't it　　　 B. is it　　　　 C. don't they　　 D. do they