16. Hold on to your dreams, ______ they will come true one day. (06沈阳)

　A. but　　 　B. and　 　C. or　 　　D. so

15. Study hard, ______ you’re sure to have a good result in the exam. (06 威海)沈阳宜昌

　A. and　　 B. but　　 C. for　 D. or

14. He can’t decide which to choose______ there is no difference between them. (06山西)

　A. but　 　　　B. so　　 　　C. because

13. Look left and right before you cross the road, ______ you may be hit by a car. (06黄冈课改实验区)

　A. and　　 　　B. so 　　　C. but　 　　D. or

12. We didn’t have enough chairs, ______ some of the students had to sit on the floor. (06广州课改实验区)

　 A. but　　 B. so　 C. or　　 D. and

11. ______ weather we had on our holiday! (06广州课改实验区)

A. What a good　 　　　　　B. How a good　

C. What good　 　　　　　　D. How good

10. ---- We had better ask Bob to help us. (06绍兴)

　 ---- ______ he is away on business.

　A So　　 B. And　 　　C. Or　 　　D. But

9. ---- Would you like to play basketball with us? (06福建课改实验区)

----Yes, I’d love to. ______ I’m afraid I have no time.

A. So　 　　B. But　 　　C. Or　 　　D. And

8. Work hard, ______ you may catch up with your classmates soon. (06重庆)

　A. or　　 B. but　　 C. and　　 D. yet

7. ______ big the tree is! (06长沙市课改实验区)

　A. What　 　　B. How　 　　C.　 What