15.The prospect of increased prices has already ______ worries.

　　A) provoked

　　B) irritated

　　C) inspired

　　D) hoisted

　　16.The suspect ______ that he had not been in the neighbourhood at the time of the crime.

　　A) advocated

　　B) alleged

　　C) addressed

　　D) announced

　　17.Although the colonists ______ to some extent with the native Americans , the Indians' influence on American culture and language was not extensive.

　　A) migrated

　　B) matched

　　C) mingled

　　D) melted

　　18.E-mail is a convenient, highly democratic informal medium for conveying messages that _______ well to human needs.

　　A) adheres

　　B) reflects

　　C) conforms

　　D) satisfies

　　19.The wings of the bird still ______ after it had been shot down.

　　A) slapped

　　B) scratched

　　C) flapped

　　D) fluctuated

　　20.The disagreement over trade restrictions could seriously ?______ relations between the two countries.

　　A) tumble

　　B) jeopardize

　　C) manipulate

　　D) intimidate

　　21.When you put up wallpaper, should you ______ the edges or put them next to each other?

　　A) coincide

　　B) extend

　　C) overlap

　　D) collide

　　22.Under the present system, state enterprises must ______ all profits to the government.

　　A) turn down

　　B) turn up

　　C) turn out

　　D) turn in

　　23.Oil companies in the U.S. are already beginning to feel the pressure. Refinery workers and petroleum-equipment-manufacturing employees are being _______.

　　A) laid out

　　B) laid off

　　C) laid down

　　D) laid aside

　　24.We'll ______ you for any damage done to your house while we are in it.

　　A) compensate

　　B) remedy

　　C) supplement

　　D) retrieve

　　25.She cut her hair short and tried to ______ herself as a man.

　　A) decorate

　　B) disguise

　　C) fabricate

　　D) fake

　　26. Starting with the ________ that there is life on the planet Mars, the scientist

　　went on to develop his argument.��

　　A) premise

　　B) pretext

　　C) foundation

　　D) presentation

　　27. After several nuclear disasters, a ________ has raged over the safety of nuclear energy.

　　A) quarrel

　　B) suspicion

　　C) verdict

　　D) controversy

　　28. Their diplomatic principles completely laid bare their ________ for world conquest.

　　A) admiration

　　B) ambition

　　C) administration

　　D)orientation

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