12. Mr Brown knows little Japanese, _______ he can’t understand the instructions on the bottle of the pills.

　　　　 A. so　　　　　 B. or　　　　　 C. but　　　　　　 D. for

11. The mountain was _______ steep _______ few people in our city reached the top.

　　　　 A. so; as　　　　 B. so; that　　　 C. as; as　　　　　 D. too; to

10. The war was over about three months ago, _______ the American soldiers in Iraq are still having a lot of trouble to deal with.

　　　　 A. or　　　　　 B. and　　　　 C. but　 　　　　　D. for

9. He was riding to school _______ he was hit by a car this morning.

　　　　 A. while　　　　 B. when　　　　 C. as　　　　　　 D. so

8. Do you want to stay at home _______ go shopping with us?

　　　　 A. and　　　　　 B. but　　　　 C. or　　　　　　 D. so

7. Stop cutting trees, _______ the earth will become worse and worse.

　　　 　A. and　　　　　 B. but　　　　 C. or　　　　　　 D. then

6. You’d better do it _______ your mother did.

　　　　 A. when　　　　 B. as　　　　　 C. like　　　　　 D. because

5. –Excuse me. Do you have a table for two?

　　　 --I’m sorry, ______ there aren’t any seats now. Would you mind waiting for a while?

　　　　 A. but　　　　　 B. and　　　　 C. or　　　　　　 D. so

4. Mike is good at playing basketball _______ Bruce does well in football.

　　　　 A. when　　　　 B. until　　　　 C. since　　　　　 D. while

3. Jim has been in the factory for two years _______ he left school.

　　　　 A. when　　　　 B. since　　　　 C. as soon as　　　 D. whether