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. -----Hi, I haven’t seen you for years. You look well.
-----________. You look well, too.
A. Great B. Thanks C. Oh, no. D. Not at all
22. I rang you several times yesterday but couldn’t ______.
A. get on B. get down C. get through D. get to
23. He is very old, ______ he still works very hard.
A. but B. if C. when D. as
24. Tom kept quiet about the accident _____ lose his job.
A. in not order to B. in order not to
C. in order to not D. not in order to
