A computer _____ think for itself; it must be told what to do.

试卷相关题目

• 1.He went there on foot and got very tired, but he _____ by bus. The fare was rather cheap.

  A.could have gone

  B.must have gone

  C.ought have gone

  D.will have gone

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• 2Sorry I'm late. I ______ have turned off the alarm clock and gone back to sleep again.

  A.might

  B.should

  C.can

  D.will

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• 3We were all waiting for you. You _____ for the seaside by yourself without leaving a message.

  A.mustn't leave

  B.shouldn't have left

  C.could not have left

  D.needn't leave

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• 4“Do you have to leave now? ”   “I'm sorry, but I really ____.”

  A.can't

  B.have

  C.should

  D.must

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• 5——Hi, Mike．Any idea where Mary is? ——She ____ in the classroom．I saw her there just now．

  A.shall be

  B.should have been

  C.must be

  D.might have been

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• 6 “Oh, Peter, you are running a high fever. You _______ go to see a doctor or you'll miss the entrance exam.” said the teacher.

  A.must

  B.should

  C.might

  D.Could

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• 7It's said that there are plenty of hotels in that town. There ______ be any difficulty for you to find somewhere to stay .  

  A.wouldn't

  B.mustn't

  C.shouldn't

  D.needn't

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• 8—I hear you've got a set of valuable Australian coin. ________ I have a look? —Yes, certainly.

  A.Do

  B.May

  C.Shall

  D.Should

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• 9 —— My goodness! I've just missed the train. —— That's too bad. I am sure you ________ it, if you had hurried.

  A.could have caught

  B.had caught

  C.would catch 　

  D.could catch

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• 10Without the air to hold some of the sun's heat,the earth at night ______ .

  A.would be freezing cold

  B.will be freezing coldly

  C.would be frozen cold

  D.can freeze coldly

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