33. She changed so much that I could hardly _______ her when we met again after a separation of 20 years.

　　 A. recognize 　　　　　　　 B. know　　　　　　　　　 C. remember　　　　　　　 D. tell

32. -When did you go to the United States?

-- I remember _______ there when I was ten.

A. having taken　 B. to be taken　 C. being taken　 D. to take

31．I prefer studying English at home ______the match．　

　　 A．to watching 　 　 B．to watch　 　　　　　 C．rather than watch　 D．rather than watching

30. We can’t use the machine now, for it _______.

A. has been repaired　 B. is repairing　 C. is repaired　 D. is being repaired

29. To her surprise, the life she had been looking forward to ________ to be unpleasant.　

A. prove　　　　　 B. being proved　　　 C. proving　　　　 D. proved

28. My advisor encouraged ______ a summer course to improve my writing skills.

A. for me taking　　 B. me taking　 C. for me to take　　 D. me to take

27．In fact, 　　is really a hard job for the police to keep order in an important football match．

　　 A．this　　 　　　　　　　 B．that　 　　　　　　　　 C．there　 　　　　　　　 D．it

26．They considered　　　 a computer, which was considered　　　 a great help in their work．

　　 A．to buy; to be　 　 B．buying; being 　　 C．to buy; being　 　　 D．buying; to be

25. The number of people invited __________ fifty, but a number of them _______ absent for different reasons.

　 A. were… was　　　　　　　　　　　　　　　　　　　　　　 B. was… was　　　　

　 C. was… were　　　　　　　　　　　　　　　　　　　　　　 D. were… were

24.The place was flooded ________ it had been raining for several weeks.

　　 A. because　　　　　　　　　　 B. because of 　　　　 C. ever since　　　　　　　 D. as a result of