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    29．Safety in schools has been of great concern because of frequent reports about accidents students got injured or killed while in school． A．in which B．for which C．which D．when 【查看更多】

     

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    Safety in schools has been of great concern because of frequent reports about accidents ________
    students got injured or killed while in school.
    [      ]
    A. in which  
    B. for which
    C. which  
    D. when

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     Safety in schools has been of great concern because of frequent reports about accidents

    __ students got injured or killed while in school.

       A. in which            B. for which       C. which             D. when

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    Safety in schools has been of great concern because of frequent reports about accidents _____ students got injured or killed while in school.

    A．in which                  B．for which         C．which             D．when

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    Safety in schools has been of great concern because of frequent reports about accidents _______ students got injured or killed while in school．

    A．in which        B．for which           C．which             D．when

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