27.Each of us is likely to develop a personal _______ for certain types of entertainment.

A. feature　　　　　 　 B. interest　　　　 　　 C. habit　　　　　　 D. preference

26.Using renewable energy sources is a simple idea, but ________ which is hard to put into practice.

A. one　　　　　　 　　 B. what　　　　　　 　 C. the one　　　　　　 D. that one

25.She has a(an) 　　　　eye for fashion, which makes her a very good shopping companion.

A. active　　　　　 　　 B. swift　　　　　　 　 C. acute　　　　　 　　　 D. dull

24.In Beijing volunteers are making use of every minute to　 　　　　their foreign language because language volunteers must pass a written test and an interview.

A. polish up　　　　 　　 B. take up　　　　　 C. put up　　　　　 　 D. make up

23. As long as I can remember, 　　　　I called, his wife would answer the phone.

A. however　　　　 　　 B. whenever　　　　 　 C. whatever　　　　　 D. whichever

22.Although _________ my opinion, the old professor didn’t come up with his own.

A. on　　　　　　　　　　　 　 　　 B. against　　　　 　　　 C. for　　　　　　　　　　 　 　 D. in