1. __________you didn't know the rules won't be a sufficient excuse for your delaying submitting the report.
A. It is B. That C. Because D. What
答案：B
2. It was __________ a hundred people looked lost in it.
A. too large room so B. so a large room where
C. so large a room that D. such a large room which
答案：C
3. Advertising is distinguished from other forms of communication __________ the advertiser pays for the message to be delivered.
A. where B. in order that C.in that D. in the way
答案：C
4. You can fly to London this afternoon __________ you don't mind changing plane for Paris.
A. provided B. unless C. except D. so far as
答案：A
5. __________ he had discovered his error, Jamaica made the necessary corrections in the data.
A. As though B. As soon as C. As if D. As far as
答案：B
6. __________the students were discussing the car accident, Benne put in that the road was icy.
A. Since B. Where C. While D. As soon as
答案：C
7. They repeated the test several times__________ they succeeded in getting a correct result.
A. when B. since C. until D. for
答案：C
8. We must begin testing the instrument no matter __________ difficult it is.
A. what B. when C. how D. however
答案：C
No matter how difficult = however it is difficult
9. __________I left school I had taught that subject for ten years.
A. Whenever B. By the time C. The moment D. Since
答案：B
10.__________ people say, I believe he is as innocent as a baby unborn.
A. Whoever B. However C. Whatever D. Whenever
答案：C