第二部分 英语知识运用(共两节, 满分45分)
第一节 单项填空(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. —Excuse me, where can I get_____ application form?
—Go to_____ Window 10, please.
A. an; 不填 B. an; the
C. 不填; 不填 D. the; the
22. ［2012桐乡模拟］—Did you wait for him long?
—No, I hadn’t waited long _____ he appeared.
A. unless B. until C. before D. since
23. After a fire broke out in the lab，a lot of equipment_____.
A. is damaged B. had damaged
C. damaged D. was damaged
24. ［2012海南模拟］It is convenient to live near downtown. _____，it is full of noise and dirty air.
