13. -Jenny doesn’t think that Robert is honest, ___?

　　 -I’m afraid not.

A. is he　　　　 B. isn’t he　　　　 C. does she　　　　 D. doesn’t she

12. -The ground is wet.

　　 -It must have rained last night,____ ?

A. hasn’t it　　 B. didn’t it　　　 C. mustn’t it　　 D. isn’t it

11. I don’t think he could have done such a stupid thing last night, ____?

A. do I　　　　　 B. could he　　　　 C. did he　　　　 D. has he

10. -Sorry, I’m not feeling well and I don’t think I can finish.

-Don’t worry. Let us do it for you , ____?

A. will you　　　　 B. shall we　　　　 C. shan’t we　　　 D. shall you

9. -Daddy’s forgot to post the letter again, ____?

　　 -I’m afraid he ___.

A. has; has　　　　 B. isn’t; is　　　　 C. hasn’t; has　　 D. has; hasn’t

8. Frank is working late again. This is the first time this week he’s had to study late, ____?

A. isn’t he　　　 B. hasn’t it　　　 C. hasn’t he　　　 D. isn’t it

7. It’s a fine day, Let’s go fishing, _____?

A. won’t we　　　 B. will we　　　　 C. don’t we　 　　　D. shall we

6. You must be fifty, ________?

A. mustn't you　　　 B. needn't you　　 C. aren't you　　　 D. mnyn't you

5. You must have seen him off yesterday, _________?

A. haven't you　　　B. didn't you　　　 C. mustn't you　　D. needn't you

4. Let's take a walk, ________?　

A. will you　　　　 B. don't we　　　　 C. do we　　　　 D. shall we