21. We must try to reach          agreement if we don't want to lose          face.

A. the; a               B. /; the             C.an; /               D. an; the

22.The doctor considered          a good idea for the businessman to take a holiday.

A. this                 B. that               C. one                D.it 

23.          me, I don't want to say something about the matter.

A. As for               B. Because of         C.As a result of      D. Thanks to

24. I'm thinking about          I will tell the news to our head teacher.

A. that                 B. what               C. whether            D. if

25. Could I use your computer for a while?

—Of course! You         .

A. might                B. can                C. could              D. will