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    (1)Mr. Johnson must have come back yesterday, ? (2)He must have waited here for a long time, ? A. hasn’t he B. haven’t he C. mustn’t he D. didn’t he 【查看更多】

     

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    (1)Mr．Johnson must have come back yesterday, ________?

    (2)He must have waited here for a long time, ________?

    A．hasn’t he

    B．haven’t he

    C．mustn’t he

    D．didn’t he

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