12. ---My trousers are______ .

　 ---I’ll buy you a new pair.

　A. wore out　 　B. worn out　 　　C. wearing out　 　　D. sold out

11. ---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

10. ---May I go out with you tomorrow?

　 ---If your job ______by then.

　A. has been finished 　　　B. finish　 　　C. will be finished 　　　　D. will finish

9. The children ______ not to play with the fire.

　A. are often told　 　　B. tell　 　　C. are telling　 　　D. told

8. With the help of the computer, information can ____every corner of the world swiftly.

　A. get　 B. reach　 　　C. arrive　 　　D. return

7. ---You seem to like sweets.

　---_______ .That’s probably why I’m becoming fatter and fatter.

　A. So I do 　　　B. So do I　 　　　C. So am I　 　　　D. So I am

6. ---I’m sorry to have kept you waiting long.

　---Never mind. I ____ here for only a few minutes.

A. have been 　　　B. have come　 　　C. have arrived　 　　D. waited

5. ---Will you be back ____ five in the afternoon?

　---I’m not sure, maybe later than that.

　A. in　 　　B. before　 　　　C. for　 　　D. until

4. Roy made several kites, but _____ of them can fly high in the sky.

　A. neither 　　B. none 　　　C. all　 　　D. most

3. ---Have you finished your work yet?

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

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