28.(　 ) Susan’s parents have bought a large house with a swimming pool. It ____ be very expensive.

　 　　A. can　　 B. must　　 C. mustn’t　　 D. can’t

27.(　 ) If I ______you, I _____take a long walk before going to bed.

　　 　　A. am, will　　 B. was, will　　 C. were, would　 D. had been, would

26.(　 ) Teenagers aren’t ______ at that age.

　 　　A. enough serious　 B. serious enough　 C. such serious　 D. serious such

25.(　 ) I’m not allowed to go out on school nights _______.

　 　　A. either　 B. too　 C. also　　 D. neither

24.(　 )─ I think students should be allowed to do their homework with friends.

　　　 ─ _____. They talk instead of doing homework.

　 　　A. No　　 B. I disagree　 C. Yes　 D. I agree

23.(　 ) He walked ______fast for us ______catch up with.

　 　　A. so, that　 B. such, that　 C. enough, to　　 D. too, to

22.(　 ) What would you do 　　　　you had a million dollars?

　　 　A. who　　　　　　 B. where　　　　　 C. what　　　　　 D. if

21.(　 ) I think students shouldn’t 　　　　to drive.

　 A. allow　　　　　　 B. be allowed　　　 C. allowed　　　 D. allowing

20.(　 ) We used 　　　　beautiful roses.

　 A. to grow　　　 B. grow　　　　 C. growing　　　 D. to growing

19.(　 ) Now young people are very interested 　　　　net surfing.

　　 　A. at　　　　　　 B. with　　　　　　 C. to　　　　　　 D. in