21.The Bushmen are _______ hunters even though their weapons are primitive.

　　A.favourite

　　B.original

　　C.sufficient

　　D.expert

　　22.Before he left the White House, the president made a _______ speech.

　　A.quaarel

　　B.symbol

　　C.automobile

　　D.farewell

　　23.The local government has begun a _______ in this city to cut down the traffic accidents.

　　A.protest

　　B.punishment

　　C.protection

　　D.project

　　24.It is highly _______ that he come here tomorrow to join us.

　　A.desirable

　　B.doubtful

　　C.good

　　D.wanted

　　25.A new idea began to _______ from his mind when he was on his way back home.

　　A.emerge

　　B.output

　　C.starve

　　D.tend

　　26.If you just stay in this city for few days, we can give you a _______ library card and you can still make use of the books in the city library.

　　A.terminal

　　B.temporary

　　C.regular

　　D.chamber

　　27.When you buy anything expensive, never forget to ask for the _______ from the shop.

　　A.render

　　B.trust

　　C.receipt

　　D.tale

　　28.These programs are designed for those young people who want to _______ higher education but do not have enough time to go to university.

　　A. insure

　　B.purse

　　C.purchase

　　D.pursue

　　29.In order to write his paper, he borrowed a lot of _______ books from the school library.

　　A. implication

　　B.reference

　　C.sample

　　D.saucer

　　30.When he opened the door, he used too much force and _______ the key.

　　A.trailed

　　B.varied

　　C.twisted

　　D.wicked

　　答案:

　　21.D 22.D 23.D 24.A 25.A

　　26.B 27.C 28.D 29.B 30.C