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    -Mary looks very upset. She failed to pass the exam. -I guess so. It’s very difficult after all. A. should have B. could have C. must have D. might have 【查看更多】

     

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    ----- Mary looks very upset. She _______ failed to pass the exam.

    ----- I guess so. It's very difficult after all.

    A． must have

    B．could have

    C．should have

    D．might have

     

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    ----- Mary looks very upset. She _______ failed to pass the exam.

    ----- I guess so. It's very difficult after all.

    A  must have   B could have   C should have  D might have

     

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    ----- Mary looks very upset. She _______ failed to pass the exam.
    ----- I guess so. It's very difficult after all


    1. A.
      must have
    2. B.
      could have
    3. C.
      should have
    4. D.
      might have

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    ----- Mary looks very upset. She _______ failed to pass the exam.

    ----- I guess so. It's very difficult after all.

    　 A must have　 B could have　 C should have D might have

    查看答案和解析>>

     ----- Mary looks very upset. She _______ failed to pass the exam.

       ----- I guess so. It's very difficult after all.

        A must have   B could have   C should have  D might have

    查看答案和解析>>


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