第二部分英语知识运用（共两节，满分45分）
第一节 单项选择（每小题1分，共15分）
21. She is ____ 18-year-old girl.
A. / B. a C. an D. the
22. ------ Where is Miss Wang?
------ She ____ to the post office.
A. has been B. has gone C. had been D. went
23. I think ____ necessary to invite him to give us a speech.
A that B. it C. this D one
24. The way ______ he explained to us is very simple.
A. that B. which C. in that D.what
25. Tom dislikes eating vegetables, ______?
A. does he B. do he C. doesn’t he D. don’t he
26. The ground is wet. It ________ last night.
A must rain B must have rained
C. can have rained D. can’t have rained
27. _______ more time, the work would have been finished on time.
A. Given B. To give
