6．C。for three times应与完成时连用，且表“被研究”，为被动语态。

20．-My stomach ______ a lot. I guess that’s because I didn’t eat my breakfast.

-It won’t ______ you if you miss breakfast for once.

A. hurts; hurt　 　　　　　　　　　 B. harms; hurt

C. injures; harm　 　　　　　　　　 D. wounds; injure

[答案]

19．-Do you consider it any good ______ the test again?

-I think so.

A. to be made　 　　　　　　　　　 B. to make

C. made　 　　　　　　　　　　　　　 D. making

18．Even though we have made much progress in preventing pollution, yet much ______.

A. is remained to do　 　　　　　 B. remains to do

C. remains to be done　 　　　　 D. is remained to be done

17．My daughter often makes a schedule to get herself ______ of what she is to do in the day.

A. remind　 　　　　　　　　　　　　 B. to remind

C. reminded 　 　　　　　　　　　　 D. reminding

16．-Oh, where is my wallet? Maybe I left it in the car.

-You ______ things behind!

A. are always leaving　 　　　　 B. were leaving

C. have left　 　　　　　　　　　　　 D. always leave

15．______ some of the wine-perhaps you will enjoy it.

A. Trying　 B. Try

C. To try　 D. Have tried

14．______ when these paintings were done, they are in excellent condition.

A. Considering　 　　　　　　　　 B. Considered

C. Having considered　 　　　　 D. Being considered

13．We have reached the point ______ a change is needed.

A. which　 　　　　　　　　　　　　　 B. when

C. that　 　　　　　　　　　　　　　　 D. where

12．-I’ll give you ￡500 for the car.

-______.

A. Done　 　　　　　　　　　　　　　 B. No question

C. Sounds a good idea　 　　　　　　　 D. Wonderful