题目列表(包括答案和解析)
18. There was such a long queue for coffee in the intervals that we ____ gave up.
A. eventually B. unfortunately C. generously D. purposefully
17. He insisted that he _____ really very tired and that he ____ to have a rest.
A. was; be allowed B. was; must be allowed
C. should be; must be allowed D. should be; be allowed.
16. When he left for the sea, he ______ nothing but some food and water.
A. took along B. brought on C. took down D. brought up
15. I won’t tell the student the answer to the math problem until he ______ on it for more than an hour.
A. has been working B. will have worked C. will have been working D. had worked
14. So far scientists ______ 13 vitamins that play vital roles in regulating the chemical reaction.
A. identifies B. have identified C. have been identified D. have been identifying
13. Improving the environment needs a lot of money, but a good environment can , _____ promote a city’s appearance and competition.
A. in return B. in turn C. in favor D. in need
12. The manager, ______ it clear to us that he didn’t agree with us, left the meeting room.
A. who has made B. having made C. made D. making
11. They had a pleasant chat ____ a cup of coffee.
A. for B. with C. during D. over
10. It is suggested that we _____ the design of the machine before May Day.
A. should finish B. have finished C. will finish D. should have finished
9. I don’t agree with what he said. I think the theory is true ______ all cases.
A. of B. at C. about D. over
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