26.Many kinds of animals are believed to have _________ from the earth A. withdrawn B.vanished C.found D.hung 27.The engineers in this lab spent several weeks _______ their plans for the new bicycle. A. counting B.stripping C.elaborating D.casting 28.Pine trees are usually believed to _______ cold weather. A. guard B.accomplish C.roar D.endure
29.Free medical service is _______ to nearly all the college students in China. A. favorite B.available C.convenient D.average 30.After working for twenty hours without any rest， the doctors were _______. A. exhausted B.mounted C.wrapped D.restored 31.The college students in China are _______ from smoking on campus because this will do them no good. A. discouraged B.observed C.obeyed D.obtained 32.Professor Smith is also the _______ of the international program office. If you have any problem when you study here， you may go to him for help. A. detective B.president C.manager D.director 33.We won't allow any foreign country to _______ in our internal affairs. A. devote B.district C.interfere D.wander 34.We can not _______ all the magazines together. A. route B.draw C.thread D.bind 35.What he said in the meeting _______ everybody present. A. disgusted B.dismissed C.disposed D.eliminated 36.Some lazy men would rather _______ than work. A. indicate B.declare C.solve D.starve 37.This boy was _______ for what he had done in the class. A. scolded B.overcome C.inclined D.displayed 38.Some states in the United States _______ people to carry guns. A. apply B.charm C.ignore D.forbid 39.Carelessness made him fall in his job _______. A.interview B.intention C.stomach D.stocking 40.Sometimes it is very difficult to _______ some of the English words. Even the native speaker can not help. A. decrease B.create C.define D.delight 41.Students with _______ problems may apply for student loans. A. economic B.financial C.male D.economical 42.Both sugar and salt can ______in water. A. desert B.absorb C.dissolve D.involve 43.I have not heard anything from him since his _______. A. departure B.fault C.foundation D.acciptance 44.Without a proper education， people could _______ all kinds of crimes. A. conduct B.stoop C.commit D.sweat 45.Several loudspeakers are _______ from the ceiling and we can hear the speaker very clearly. A. connected B.sustained C.associated D.suspended 46.This morning in the class， our teacher lost his _______ at last because he could not stand any more. A. temper B.terror C.verse D.contain 47.It is not ——_______ for me to return all the books to the library now because I still need some of them for my research. A. continuous B.difficult C.convenient D.sufficient 48.When traveling alone in the mountains， you'd better take a _______ with you in case you get lost. A. compass B.compress C.complse D.campus 49.As a teacher， you should not _______ the students from asking questions in class. A. ruin B.restrain C.import D.impose 50.If you have any problems during your study here， please do not _______ to call me for help A. hesitate B.despair C.urge D.request 答案： 1.B 2.C 3.A 4.B 5.D 6.D 7.A 8.A 9.B 10.D 11.A 12.B 13.C 14.A 15.D 16.A 17.B 18.A 19.D 20.C 21.A 22.A 23.B 24.A 25.B 26.B 27.C 28.D 29.B 30.A 31.A 32.D 33.C 34.D 35.A 36.D 37.A 38.D 39.A 40.C 41.B 42.C 43.A 44.C 45.D 46.A 47.C 48.A 49.B 50.A
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