23．一You look so pale. What troubled you?　

　　 一I ______ my dead mother.　

　　 A. thought about　　 B. was thinking about　 C. have thought about　 D. is thinking about

22. Pardon? I _____ quite catch you.

　　 A. didn't　　　 B. couldn't　 　　C. don't　　　 D. can't

21. ______ a good many hotels and restaurants ______ in the city of Beijing.　

　　 A. In the past ten years; have built　

　　 B. In the past ten years; have been built

　　 C. During the past ten years; have built　

　　 D. In the past ten years; built

20. What we are doing _____ good for the people.　

　　 A. have been　 B. is　　 C. are　　 D. be

19. I _____ there unless the weather is fine.　

　　 A. will go　　 B. go　 C. don't go　　　 D. won’t go

18．一There is too much snow these days, isn't there?　

　 一Yes, it ______ for a few days.　

　　 A. was snowing　　　　 B. has been snowing　 C. had been snowing　 D. snowed

17. David _____ himself while he _____ the machine.　

　　 A. hurted; was fixing　　 B. hurts; is fixing　 C. hurt; fixed　　　 D. hurt; was fixing

16. One _____ if he or she breaks the law.　

　　 A. will be punished　 B. will punish　 C. is being punished　 D. has been punished

15. The novel is said _____ into many languages.

　　 A. being translated　　　　 B. having been translated

　　 C. to translate　　　　　　 D. to have been translated

14. We've _____ our friendship for over ten years now.

　　 A. kept out　　　　　　　　 　B. kept up

　　 C. kept on　　　　　　　　　 D. kept up with