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    Ben was unhappy he got a C in the math test. A. because B. before C. if D. when 【查看更多】

     

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    Ben was unhappy ______ he got a C in the math test.

    [     ]

    A.because
    B.before
    C.if
    D.when

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    Ben was unhappy ________ he got a C in the math test．

    [　　]

    A．because

    B．before

    C．if

    D．when

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