Ⅱ. 单项填空(共15小题；每小题1分，满分15分)
21. (2012·天津高二检测)—Just a moment. I haven’t finished packing my suitcase.
—_________. There is still more than 2 hours for you to prepare it.
A. Go ahead B. Don’t mention it
C. Hurry up D. That’s fine
22. The old man, who is guilty _________ not being able to care for his wife when she was ill, is ten years senior _________ his wife.
A. of; to B. about; than
