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    26．–I’m sorry, Mr. Smith．I’ve broken your glasses. --It doesn’t matter, Mark, but you careful. A．must be B．should be C．must have been D．should have been 【查看更多】

     

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    －I’m sorry, Mr．Smith．I’ve broken your glasses．

    －It doesn’t matter, Mark, but you ________ careful．

    [　　]

    A．must be

    B．should be

    C．must have been

    D．should have been

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