1. I’ll let you know ____ he comes back.
A. before B. because C. as soon as D. although
2. She will sing a song ____ she is asked.
A. if B. unless C. for D. since
3. We will work ____ we are needed.
A. whenever B. because C. since D. wherever
4. Read it aloud _____ the class can hear you.
A. so that B. if C. when D. although
5._____ you go, don't forget your people.
A. Whenever B. However C. Wherever D. Whichever
6. It is about ten years _____ I met you last.
A. since B. for C. when D. as
7. They will never succeed, _____ hard they try.
A. because B. however C. when D. since
8. _____ still half drunk, he made his way home.
A. When B. Because C. Though D. As
9. _____ she was very tired, she went on working.
A. As B. Although C. Even D. In spite of
10. Busy _____ he was, he tried his best to help you.
A. as B. when C. since D. for
11. I learned a little Russian _____ I was at middle school.
A. though B. although C. as if D. when
12. _____ we got to the station, the train had left already.
A. If B. Unless C. Since D. When
13. _____ the rain stops, we' 11 set off for the station.
A. Before B. Unless C. As soon as D. Though
14. She was _____ tired _____ she could not move an inch.
A. so, that B. such, that C. very, that D. so, as
15. We didn’t go home _____ we finished the work.
A. since B. until C. because D. though
16. I'll stay here _____ everyone else comes back.
A. even if B. as though C. because D. until
17. Although it's raining, _____ are still working in the field.
A. they B. but they C. and they D. so they
18. Speak to him slowly _____ he may understand you better.
A. since B. so that C. for D. because
19. You'll miss the train ______ you hurry up.
A. unless B. as C. if D. until
20. When you read the book, you' d better make a mark _____ you have any questions.
A. at which B. at where C. the place D. where
1-5 CADAC 6-10 ABCBA 11-15 DDCAB 16-20 DABAD
