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    科目： 来源：不详 题型：单选题

    —Do you know where David is? I couldn’t find him anywhere.
    —Well. He _________have gone far—his coat’s still here.
    A．shouldn’tB．mustn’tC．can’tD．wouldn’t

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    科目： 来源：不详 题型：单选题

    He paid for a seat, when he _________ have entered free.  
    A．couldB．wouldC．mustD．need

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    科目： 来源：不详 题型：单选题

    —Catherine, I have cleaned the room for you.
    —Thanks. You _________it. I could manage it myself.  
    A．needn’t doB．needn’t have done
    C．mustn’t doD．shouldn’t have done

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    科目： 来源：不详 题型：单选题

    This cake is very sweet. You _________ a lot of sugar in it.  
    A．should putB．could have putC．might putD．must have put

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    科目： 来源：不详 题型：单选题

    –She looks upset.
    --Yes, I’d rather I _____________ her the bad news.
    A．didn’t tellB．don’t tellC．hadn’t toldD．wouldn’t tell

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    科目： 来源：不详 题型：单选题

    If human beings had been a bit less greedy and cruel, more birds and animals _______dying out.
    A．ought to avoidB．could have been avoided
    C．should have avoidedD．might have avoided

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    科目： 来源：不详 题型：单选题

    He ____the job well, but he_______so careless.
    A．had done; had been B．could do; was
    C．could have done; wasD．hadn’t done; had been

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    科目： 来源：不详 题型：单选题

    It is strongly suggested that measures ________students to cheat in the exams.
    A．be taken to prevent B．be taken to forbid
    C．are taken to preventD．are taken to forbid

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    科目： 来源：不详 题型：单选题

    —No wonder you caught a cold. You _______out last night without a coat.
    —I know how silly I was.
    A．shouldn’t have goneB．mustn’t have gone
    C．couldn’t have goneD．mightn’t have gone

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    科目： 来源：不详 题型：单选题

    Terribly sorry, I came home at last. I ____of the supermarket ____so crowded.
    A．should have thought; beingB．should think; being
    C．could have thought; wasD．could think; was

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