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    科目： 来源：不详 题型：单选题

    Looking back their senior school life, many university students said they____have wasterd so much time on computer games then.
    A．couldn’tB．wouldn’tC．needn’tD．shouldn’t

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    科目： 来源：不详 题型：单选题


    23. Your room is terribly dirty; you        get it cleaned in two hours, or Mum will be angry.
    A．canB．mightC．shallD．may

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    科目： 来源：不详 题型：单选题

     
    16．—Where is Lily, Lucy? I cannot find her anywhere.
    —She_________have been off long. I saw her clean the window just now.
    A．shouldn’tB．can’tC．mustn’tD．needn’t

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    科目： 来源：不详 题型：单选题

    We must apply what we have learned to our daily work because in no case _____ from practice.
    A．should theory separateB．should theory be separated
    C．theory should separateD．theory should be separated

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    科目： 来源：不详 题型：单选题


    －Mary, how did your Math test go?
     －I had thought I _________, but in fact I came in the top 10% in my class.
    A．should have failed B．couldn’t have failed
    C．might have failed D．shouldn’t have failed

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    科目： 来源：不详 题型：单选题


    13．－Where will you start your work after graduation?
    －Mum, it's not been decided yet. I_______continue my study for a higher degree.
    A．canB．mustC．wouldD．Might

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    科目： 来源：不详 题型：单选题

    ---It’s supposed to rain tomorrow.
    ---I know, but the forecast ___ be wrong. Weather forecasts are far from 100 percent accurate.    
    A．mustB．couldC．shouldD．will

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    科目： 来源：不详 题型：单选题


    We______every day for almost two weeks ,so I’ll need to buy a large backpack to carry my supplies .
    A．walkB．have walkedC．have been walkingD．will be walking

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    科目： 来源：不详 题型：单选题


    In that hospital under no circumstances any member of staff___socialize with the patients .
    A．mayB．mustC．canD．Should

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    科目： 来源：不详 题型：单选题

    Shopping online can save much time as you _______ go to a shop or walk around crowded
    shopping centers.
    A．don’t have toB．oughtn’t toC．won’tD．mustn’t

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