() 22. 一Please to return it by Friday.

—OK. I'll finish reading it on Thursday.

   A. don't forget   B. not to forget

   C. not forget   D. forget not to

() 19. Frank is very lonely. He has few friends,?

   A. does he   B. doesn't he

   C. is he   D. isn’t he

() 20. smoke here,dad. Smoking has been banned in public places.

   A. Don't be   B. Don't

   C. Not to be   D. Be not

() 21. exercising,and you'll be healthier.

   A. Keep   B. To keep

   C. Keeping   D. Kept

() 18. Don't make so much noise,Lily, ?

   A. do you   B. don't you

   C. will you   D. won't you

() 17. —Mr. Wang's never been to Canada,has he?

一 . He went there on business last week.

   A. No,he hasn't   B. Yes,he has

   C. No,he has   D. Yes,he hasn't

() 16. Let's go to the cinema to see a film, ?

   A. will you   B. shall we

   C. won't you   D. don't you

() 15. They hardly watch TV on school nights,?

   A. will they   B. aren’t they

   C. do they   D. didn't they

() 14. —Tom didn't go to school this morning,did he?

— , though he had a bad cold.

   A. Yes,he didn't   B. Yes,he did   C. No,he didn't   D. No,he did

() 13. — kind girl Jenny is!

一Yes. Everyone likes her very much.

   A. What   B. What a

   C. How   D. How a