29.― It’s necessary to slow down the population growth.

―________ .

A. No problem   B.  I agree  C .  I’m afraid not  D.  All right

28. ―Tom’s ill. When shall we go to see him, tonight or tomorrow night?

―____. Either night is OK.

A. I don’t know  B. I don‘t mind  C.  I’m not sure  D. I‘m afraid not

27. ―Everyone knows the earth moves round the sun.

―But long long ago, people didn’t  know the earth___ round the sun.
A. moving  B. moved  C. moves  D. went

26. ― __________?

―Quite well, thank you.

A.     What do you do

B. What do you think of it.

C. How are you getting on with your English

D. Are you good at English

24. ― Shopping with me ?

―Sorry, I have a lot of clothes ___________ .

   A. to wash  B. washed  C. wash  D. to be washed

23. .―Will you please show me how to operate the new machine?

―Sure. It’s a piece of cake. Now let me tell you _____ to do first.

A.  what　 B.  how　C.  whether　 D.  which

22.―Have you finished your work yet?

―No, not yet. I think  it’ll take _____ ten minutes

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

21. ― Have you both ever listened to foreign music?

    ― _________ .

A. Yes. We did.  B.  No, we have often.  C.  Yes, I have.  D.  No, never.

20. Did Mr. Read take the wrong cat by mistake?

A. Yes， he did.

B. No， he didn’t.

C. Sure， it is.
D. Certainly， why not?