时间：20分钟 满分150分
一。单选(每题1分，共20分)
1. _____ surprised us most, I think, was that as an expert, he didn’t even know _____ the problem lay.
A. What; what B. It; where C. What; where D. It; in which
2. --- I _____ so busily recently that I _____ no time to help you with your maths.
--- That’s OK. I can manage it by myself.
A. have been working; have B. have worked; had
C. am working; will have D. had been working; had had
3. --- Why did you ______ the third paragraph of your rewritten composition?
--- Because I thought it was off the point.
A. put out B. make out C. figure out D. leave out
4. ---Must we set off that early?
---______, unless you don’t want to guarantee yourself a good seat.
A. Yes, of course not B. No, it’s necessary C. Sure enough D. Surely not
5. ---When did you return last Friday?
---It was not until midnight ______ it was raining hard.
A. when B. which C. that D. before
