21.There is such a problem　　　 we all should　　　 .

　 A.as;pay attention to it　　　　　　　　　　　　 B.that;attract our attention

　 C.as;pay attention to　　　　　　　　　　　　　　 D.that;attract our attention to it

　 答案　 C

20.-Susan’s head ached　　　　 staring at the screen for over ten hours.

　 -Over ten hours!That’s really　　　 what I can imagine!

　 A.of;above　　　　　　　 B.in;over　　　　　　　 C.through;among　　　　 D.from;beyond

　 答案　 D

19.You can’t attend the party tonight because it is stormy.　　　　 ，you still haven’t got over your high fever.

　 A.Therefore　　　　　　　 B.However　　　　　　　 C.Moreover　　　　　　　 D.Thus

　 答案　 C

18.　　 　 receiving updates on the preparatory work for the Beijing 2008 Olympic Games，he will attend to various matters.

　 A.Apart from　　　　　　 B.Rather than　　　　　 C.Instead of　　　　　　 D.Because of

　 答案　 A

17.　　 　 hearing someone knocking at the door，Mrs. Black　　　 it without delay.

　 A.Through;answered for　 B.On;replied to　　　　 C.In;replied　　　　　　 D.On;answered

　 答案　 D

16.He was such a famous star that　　　 he did，even his way of walking，was imitated by many young people.

　 A.whatever　　　　　　　 B.no matter what　　　　 C.however　　　　　　　 D.no matter how

　 答案　 A

15.While in London，we paid a visit to the hospital founded　　 Florence Nightingale.

　 A.in honor of　　　　　　 B.in terms of　　　　　 C.in favor of　　　　　 D.in place of

　 答案　 A

14.-How do you think of the self-defense policy released last week?

　 -It is fine　　 　 it goes，but it addresses only half of the prevention methods.

　 　A.as long as　　　　　　 B.as far as　　　　　　 C.as well as　　　　　　 D.as often as

　 答案　 B

13.I think I will do it myself　　　 asking him for help.

　 A.rather than　　　　　　 B.other than　　　　　　 C.instead of　　　　　　 D.in place of

　 答案　 C

12.　　　　 　me，I don’t feel pressured to study English.Instead，I enjoy it.

　 A.As to 　　　　　　　　 B.As for　　　　　　　　 C.As with　　　　　　　 D.As if

　 答案　 A