1. It worried her a hit _______ her hair was turning grey.
A. while B. that C. if D. for
2. You will be late _________ you leave immediately.
A. unless B. until C. if D. or
3. _________ the days went on, the weather got worse.
A. With B. Since C. While D. As
答：D. As the days went on. 随着时间一天天地过去。
4. We must get up early tomorrow, _______ we’ll miss the first bus to the
A. so B. or C. but D. however
5. I didn’t manage to do it _______ you had explained how.
A. until B. unless
C. when D. before
答：A.unless相当于if...not 若选B项，主句应用虚拟句式 I wouldn’t have managed to do it if you
had not explained how。项与句意不符.根据主句与从句的时态可排除D项。
6. ________he comes, we won’t be able to go.
A. Without B. Unless
C. Except D. Even
7. I hurried _________ I wouldn’t be late for class.
A. since B. so that
C. as if D. unless
8. Although he is considered a great writer, ______.
A. his works are not widely read
B. but his works are not widely read
C. however his works are not widely read
D. still his works are not widely read
答：A.although不能与but，however等词连用.但可和still连用，D项中still的位置应放在are之后：his works are
still not widely read.
9. —What was the party like?
—Wonderful. It’s years _______ I enjoyed myself so much.
A. after B. before C. when D. since
答：D。It十时间+since... (since从句谓语用过去式);h was+时间+since... (since从句谓语用过去完成式)。
10. —I don’t like chicken _______fish.
— 1 don’t like chicken, _______ I like fish very much.
A. and, and B. and, but
C. or, and D. or, but