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    Dr Bethune was busy the wounded soldiers. A.operating on B.operate on C.operate at D.to operate in 【查看更多】

     

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    Dr. Bethune was busy ________ the wounded soldiers.

    [　　]

    A. operating on
    B. operate on
    C. operate at
    D. to operate in

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    Dr. Bethune was busy ________ the wounded soldiers.

    [　　]

    A. operating on
    B. operate on
    C. operate at
    D. to operate in

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    Dr Bethune was busy ________ the wounded soldiers.

    [　　]

    A．operating on
    B．operate on
    C．operate at
    D．to operate in

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    Dr Bethune was busy ________ the wounded soldiers.

    [　　]

    A．operating on

    B．operated to

    C．to operate at

    D．operation on

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