13. When and where to have the next discussion ________yet?

A. has not decided　　　　　　 B. is not decided

C. have not decided　　　　　 D. are not decided

12. If we ______, we won’t get tired.

A. to take driving by turns　　 B. drive in turns

C. take each turns driving　　　 D. take turns driving

11. Are all Chinese textbooks _______in your _______house?

A. publishing; publishing　　 B. published; published

C. publishing; published　　　 D. published; publishing

10. ------Has the doctor arrived yet?

-------No, she ________an hour ago.

A. has to come　　 B. ought to have come

C. should come　 D. used to come

9. If you _______succeed, you must work as hard as you can.

A. will　 B. are to　 C. is going　 D. should

8. When you read the book, you’d better make a mark ______ you have any questions.

A. at which　 B. at where　　 C. the place where　　 D. where

7. She usually goes to school _______ bus; but sometimes she goes to school _______ a taxi.

A. in; in　　　 B. by; by　　　 C. in; by　　 D. by; in

6. This question is of the _______importance of all.

A. less　　　 B. least　　　 C. fewer　　 D. fewest

5. ------Have you finished your report yet?

-------No, I’ll finish in ______ten minutes.

A. another　　 B. other　　　 　C. more　　 D. less

4. The medicine is to be taken______.

A. three time a day　　　　　 B. a day three times

C. three times a day　　　　　 D. a day three time