题目内容：

1---Not yet.I’ll search some on the Internet.
---I feel very happy that I ____to be the host.
---Congratulations!
A.choose B.am chosen C.was chosen D.haven chosen
2---Inventors have changed the way we live.
---So they are famous for the great things they___.
A.do B.did C.are doing D.had done
3---Have you found the information about famous people____ you can use for the report?
A.which B.who C.what D.whom
4---What should I do,doctor?
---_____healthy,you should take more exercise.
A.Keep B.Keeping C.To keep D.Having kept
5.---Are you going to Bejing by plane?
---It’s fast ,but expensive.So I am not sure.I____take a train.
A.should B.may C.must D.will

优质解答

1.C
我被选为主人用被动语态.
2.D
他们已经做过的用完成时.
3.A
you can use 的宾语应为information而不是famous people,用which.
4.C
表目的,用不定式.
5.B
I am not sure表示我不确定用may表可能.