23. ______ a little more time to think, he might have acted more sensibly. A. If he took B. If he has taken C. had he taken D. Should he take ...

21. The highest temperature ______ in any furnace on earth is about 10,000 centigrade. A. we can get B. that we can get it C. which we can get it D. what we can get ...

18. “Perhaps she is working for John.” “Yes, she ______ for him.” A. need have been working B. may be working C. ought have been working D. ought be working ...

15. I have been going to Shanghai ______ than I used to. A. lesser B. less C. fewer D. less often ...

10. As soon as I ______ the tools, I shall begin with the work. A. have B. am having C. have been having D. have been had ...

8. Strange ______ his behavior may be, there is a very good reason for it. A. although B. even if C. that D. as ...

5. It ______ every day so far this month. A. is raining B. rains C. has rained D. has been rained ...

39. ____ my car is being made ready for a long journey. A. In the moment B. For the moment C. At the moment D. By the moment ...

33. We can’t hope to catch up with that car ______ us. A. in advance of B. in the front of C. at the frontier of D. ahead of ...

32. I have two novels: one of the two is “Gone with the Wind’, and ______ is “the Tale of Two Cities’. A. another B. other C. none other D. the other ...