24.If you are traveling________the customs are really foreign to your own,please do as the Romans do.

A.in which　　 B.what　　　　　　 C.when　　　　　 D.where

23.-Why didn’t you tell him about the meeting?

-He rushed out of the room________I could say a word.

A.before　　　 B.until　　　　　 C.when　　　　　 D.after

22.Mother was worried because little Alice was ill,especially________Father was away in France.

A.as　　　　　 B.that　　　　　 C.during　　　　 D.if

21.-I am going to the post office.

-________you’re there,can you get me some stamps?

A.As　　　　　 B.While　　　　　 C.Because　　　 D.If

20.Scientists say it may be five or six years________it is possible to test this medicine on human patients.

A.since　　　　 B.after　　　　　　 C.before　　　 D.when

19.________modeling business is by no means easy to get into,the good model will always be in demand.

A.While　　　　 B.Since　　　　　 C.As　　　　　 D.If

18.________the stars are,the smaller they look,as is known to all the people.

A.The farther away　　　　　　　　　 B.Farther away

C.No matter how far away　　　　　　 D.If farther away

17.The action of the play is________the struggle between the two women.

tred on　　　　　　　　　　　 B.situated in

C.located in　　　　　　　　　　　 D.focus on

16.How to protect the right of the Aborigines best________a challenge for the present Australian government.

A.stays　　　　 B.remains　　　　　 C.stands　　　　 D.keeps

15.Robert’s red hair made him________in a crowd.

e out　　　　　　　　　　　　　 B.stand out

e up　　　　　　　　　　　　　 D.stand up