1.A year later，with the nation‘s economy ________， Bush’s approval rating dropped below 40 percent.
　　A. in power
　　B. in trouble
　　C. in hand
　　D. in part

　　2.There is the appreciation of the salient historical truth ________ the aging of advanced societies has been a sudden change.
　　A. which
　　B. what
　　C. that
　　D. how

　　3.Robots differ from automatic machines ________ after completion of one specific task，they can be reprogrammed by a computer to do another one.
　　A. in case
　　B. in that
　　C. in which
　　D. in time

　　4.Basically，these attitudes amount to a belief ________ leisure can and should be put to good use.
　　A. which
　　B. that
　　C. what
　　D. how

　　5.The professor worked for 7 hours at a ________.
　　A. stretch
　　B. extend
　　C. expand
　　D. prolong

　　6.If an earthquake occurred，some of the one-storey houses ________.
　　A. might be left stand
　　B. might leave to be standing
　　C. might be left to stand
　　D. might be left standing

　　7.________， he had no time to rest.
　　A. As he was tired
　　B. If he was tired
　　C. Tired as he was
　　D. Now that he was tired

　　8.Since we have a focused subject， we should not talk ________.
　　A. at once
　　B. at hand
　　C. at intervals
　　D. at random

　　9.Why do you blame him for his poor judgment on the matter ______ he really needs is encouragement？
　　A. when that
　　B. since that
　　C. when what
　　D. now that

　　10.The doctors are ________ about the guidelines under which they can carry out euthanasia.
　　A. at a stretch
　　B. at a loss
　　C. at random
　　D. at length
 

　　11.With such a poor score in the entrance exam， it‘s ________ impossible for him to be admitted to this university.
　　A. roughly
　　B. absolutely
　　C. fully
　　D. exclusively

　　12.We promise that we‘ll meet again after we _______ our college education in three years’ time.
　　A. finish
　　B. will finish
　　C. finished
　　D. will have finished

　　13.Although Tom is satisfied with his academic achievement， he wonders _______ will happen to his family life.
　　A. it
　　B. that
　　C. what
　　D. this

　　14.Never before _______ so rapidly developing as it is today.
　　A. has our country been
　　B. our country has been
　　C. has been our country
　　D. our country hasn‘t been

　　15.Is it Shakespeare Theatre _______ you are going to watch the play The Merchant of Venice？
　　A. where
　　B. that
　　C. which
　　D. as

　　16.He would have given you more help， if he ________ so busy.
　　A. have not been
　　B. had not been
　　C. not have been
　　D. not had been

　　17.After months of voyage， Columbus arrived in ______ later proved to be a new continent.
　　A. where
　　B. which
　　C. what
　　D. that

　　18.I was really anxious about you. You ______ home without a word.
　　A. mustn‘t leave
　　B. shouldn’t have left
　　C. couldn‘t have left
　　D. needn’t leave

　　19.He was ______ to withdraw from running for the presidency.
　　A. trusted
　　B. credited
　　C. convinced
　　D. believed

　　20.While _____ the book， he nodded from time to time
　　A. reading
　　B. read
　　C. is reading
　　D. is read