A. to have been infected
C. having been infected B. to be infected D. being infected
29. “I’d like to give my thanks to those _____ help my son was able to survive this terrible disease,” said the woman on TV.
A. who B. whose C. with whose D. with whom
30. The traditional ______ to dealing with complex problems is to break them down into smaller, more easily managed ones.
A. application B. reference C. approach D. introduction
31. We _____ John’s name on the race list yesterday but for his injury.
A. had put B. put C. would put D. would have put
32. Jimmy was so nervous that not a single word _____ down in the dictation.
A. he wrote
C. was he written B. he was written D. did he write
33. _____ to improving services, we will provide customers with all the information they need.
A. Being committed
C. Committed B. Having committed D. Committing
34. College students should learn to compromise. But some of them only expect people to change for them, not _____ way around.
A. another B. the other C. other D. any other
35. — Wow, what a bridge! It must have been a hard job to build it.
— Yes, we _____ a lot of time building it.
A. have spent
【参考答案】21-25 ABCAC 26-30 BCACC 31-35 DDCBD
B. are spending C. spend D. spent
Ⅰ. 单项填空(共15小题；每小题1分，满分15分)
1.At _______ recent sports science conference, hundreds of participants discussed _______ benefit