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    26．After half a year’s training , they were made entirely used underwater . A．stay B．to stay C．to staying D．staying 【查看更多】

     

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    After half a year’s training , they were made entirely used        underwater .

           A．stay                   B．to stay                C．to staying           D．staying

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    After half a year’s training, they were made entirely used   ____     underwater.

     A．stay  B．to stay  C．to staying  D．staying

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    After half a year's training , they were made entirely used ________ underwater.

    [　　]

    A．to stay
    B．to staying
    C．staying
    D．stay

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