24. It’s the first time that she has been to the United States, ____________?

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

23. Nothing the boy did was right, _______ it?

　 A. was　　 B. did　　 C. wasn’t　　 C. didn’t

22.I don’t think it is going to rain, _____________ it?

　 A. do I　　 B. do you　　 C. is　　 D. isn’t

21. Let John finish the work all by himself,___________?

　 　A. shall we　 B. will you　　 C. do you　 D. do we

20. Jack had dinner with his mother at home yesterday,

A. did　　 B. does　　 C. didn’t　　 D. hadn’t

19. Let’s go home, shall we? _________.

　A. That’s right.　 B. That’s all　　 C. That’s all right　 D. All right

18. You don’t think he will come,_________?

　A. do you　 B. will you　 C. will he　　 D. won’t he

16.------- Why is Tom absent now ?

　 -------He must be sick,________________?

　A. isn’t he　 B. must he　 C. is he　 D. mustn’t he

17, He’d like to have a look at your picture,_________-he ?

　A. hadn’t　　 B. didn’t　　 C .couldn’t　　 D .wouldn’t

15. I had to tell the truth, __________?

　A. hadn’t I　 B. wouldn’t I　　 C. didn’t I　 D. shouldn’t I

14. I’m sure he must have been sleeping at the moment, __________?

　A. aren’t I　 B, mustn’t　　 C. wasn’t he　 D. hasn’t