II.单项选择（共15小题；每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
21. What do you think his suggestion _______ we ______ a play at the English party?
A. what; put up B. that; put on C. which; put up D. that; put off
22. I had no idea when and where ________.
A. it happened B. does it happen
C. it has happened D. had it happened
23. Who ________ for the accident? The bus driver or the car driver?
A. is blaming B. is to blame C. will blame D. is being blamed
24. ---Why did the policeman question Bob yeterday?
---He was _________ of taking part in the car bombing.
A. doubted B. considered C. reminded D. suspected
25. When I opened the door, I found my father sitting in his chair, completely _________ in the book he was
