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    31．You have written so long an article．The teacher said 100 words would be enough． A．mustn’t B．needn’t C．couldn’t D．wouldn’t 【查看更多】

     

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    You _________ have written so long an article．The teacher said 100 words would be enough．

    A．mustn’t                      B．needn’t          C．couldn’t                   D．wouldn’t

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