3. Singing, playing games, and reading are forms of _____________(消遣)

2. Professor Smith , an ear ____________(专家 ), organized a national survey of nose　 disease in children.

1. Tom and Jack had ___________________( 通信 ) for many years.

25. If it were not for the fact that you _____ ill, I would ask you to do this right now.

A. were　　　　　　　　　 B. had been　　　　　 C. are　　　　　　　　 D. should be

Key: 1-5. CAABB　 6-10. BCBCB　

11-15. CAABDB　 16-20. CDCCA　 21-25. ADCDC

24. --- “Where have you been?”

　　　 --- “I got caught in traffic; otherwise _____ sooner.”

A. I would be here　　　　　　　　　　　　　　　　　　 B. I have been here

C. I had been here　　　　　　　　　　　　　　　　　　 D. I would have been here

23. We _____ the work on time without your help.

A. hadn’t had finished　　　　　　　　　　　　　　　　　　　 B. didn’t have finished

C. couldn’t have finished　　　　　　　　　　　　　　　　　 D. can’t have finished

22. You _____ such a serious mistake if you had followed his advice.

A. may not make　　　　　　　　　　　　　　　　　　　　　　　 B. might not make

C. shouldn’t have made　　　　　　　　　　　　　　　 D. might not have made

21. If only I _____ my watch!

A. hadn’t lost　　　　 B. haven’t lost　　　 C. didn’t lost　　　 D. don’t lose

20. What should we do if it _____ tomorrow?

A. should snow　　　　　　 B. would snow　　　　 C. snow　　　　 D. will snow

19. --- “What will you do during the summer holiday?”

　 --- “I don’t know, but it’s high time _____ something.”

A. I’m deciding　　　　　　 B. I’ll decide　　　 C. I decided　　　 D. I decide