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）
21. We were at _____ work, when the lights went out all of ______ sudden.
A. /; / B. /; a C. the; / D. the; a
22. Scientists are trying to find a new approach _____ the shortage of energy.
A. to B. of C. In D. with
23. If you won't go to the party, ________.
A. he will either B. neither will he
C. he neither will D. either he will
24. -You look so upset, Jane. _______?
- My pet dog is lost.
A. What's up? B. What's for? C. What are you doing? D. So what?
25. ______ that he looked unhappy; he had lost his favorite book.
A. No problem B. No charge C. No wonder D. No hurry
26. It __________ last night because the ground is dry outside.
A. can’t have rained B. must have rained
C. mustn't have rained D. should have rained
27. Mr. Wu, _____ everybody likes, is going to give us a talk on chemistry.
A. whom B. that C. which D. /
28. I waited for more than two hours, but she simply didn't ______.
