35.-Is there any vaccine against bird flu that can be used on humans?

-No, but scientists are working to develop ________ .

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

34._______ be invited to our wedding ceremony?

　 A.Do you suppose who should　　　　　　　　　　　 C.Who do you suppose will

　 C.Who do you suppose could　　　　　　　　　　　　 D.Do you suppose who can

33. Mary _________ have kept her word. I wonder why she changed her mind at the last moment.　 A.must　 　 B.should　 　　　　　　　　　　　　　　　　 C.need　 　　　　　　　　　　 D.would

32.A NASA experimental jet, the X-43A, flew at a world-record speed - 11，260 kilometers an hour on November 17. This speed is ________ as sound.

　 A.as ten times fast　　　 B.ten times so fast　　　 C.ten times as fast　　　　　 D.ten times faster

31.-How about going to the park this afternoon?

-_______? It’s a few months since I enjoyed myself in the park.

A.Why　　　　　　　　　　　 B.What　　　　　　　　　　　 C.What for　　　　　　　　　　 D.Why not

30.We were shocked to hear the news that ________ two Chinese engineers were shot to death in Pakistan. Worse still, ________ third one died in hospital afterwards.

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

29.It is required that if a foreigner of whatever nationality goes into the city, he ________ to the mayor.

A.goes and talks　 　　　 B.goes and talking　 　　 C.must go and talk　 　　　 D.go and talk.

28.-Do you know what Bush House is like?

-Yes. It is a(n) ________ building and it is the home of BBC English.

A.nice old tall white　　 B.old tall nice white　　all old white　　　　 D.white nice old tall

27.-Two men came into my office, of whom ________ I had ever seen before.

-Really? They seemed very familiar with you.

A.either　 　　　　　　　　　her　 　　　　　　　　 .both　 　　　　　　　　　　　　 D.each