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1、[单选题]It is well known that Tomas Edison __________ the electric lamp.
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A.discovered
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B.Found
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C.developed
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D.invented
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2、[单选题]The chairman has informed us that he ____________a few minutes late after the meeting begins.
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A.has arrived
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B.could arrive
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C.should arrive
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D.may arrive
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3、[单选题]She said she would live in London for ____________ four or five years.
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A.another
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B.others
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C.other
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D.the others
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4、[单选题]Mr.Smith used to smoke ____________but he has given it up now.
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A.badly
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B.seriously
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C.heavily
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D.hardly
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5、[单选题]I could not do anything except just _____ for him to come round.
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A.waiting
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B.to wait
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C.waited
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D.wait
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6、[单选题]Wang Ming ____ ill.I saw him playing basketball a moment ago.
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A.needn't have been
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B.couldn't have been
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C.must have been
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D.can't be
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7、[单选题]I _____ her for your girlfriend when I first saw her in your home.
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A.figured
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B.thought
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C.considered
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D.regarded
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8、[单选题]The old man is proud of his three sons _____ college in the same year.
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A.entering
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B.entered
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C.to enter
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D.for entering
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9、[单选题]____, the students had to go to bed.
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A.The lights had gone out
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B.The lights went out
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C.The lights having gone out
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D.The lights have gone out
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10、[单选题]I wish I could _____ some way of persuading him out of smoking.
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A.think of
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B.think about
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C.think up
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D.remind
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11、[单选题]He insists that he ______ innocent.
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A.is
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B.be
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C.should be
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D.were
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12、[单选题]We should never be frightened out of our wits _____ an earthquake.
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A.being up with
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B.in the front of
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C.in the face of
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D.ahead of
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13、[单选题]At present ____ than doing well in our socialist economic construction.
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A.nothing is more important
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B.much is more important
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C.nothing is less important
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D.anything is more important
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14、[单选题]As a poor fresh student, he had to do a part-time job _______ money.
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A.owing to
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B.because of
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C.on account of
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D.for the sake of
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15、[单选题]Our classroom is ______ in the school building.
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