第二部分：单项填空(共15小题；每小题1分，满分15分)
21. ---- Could you be so kind as to close the door?
---- _____.
A. Go ahead B. That’s OK C. With pleasure D. Yes, please
22. Our New Year party was _____ success. We sang and danced until it came to _____ end at 10 o’clock.
A. a; the B. a; an C. the; an D. /; the
