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    Rose couldn’t concentrate what she was doing her family were watching TV. A. to; when B. on; while C. for; when D. in; while 【查看更多】

     

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    Rose couldn’t concentrate ______ what she was doing ______her family were watching TV.

    A. to; when　 B. on; while　 C. for; when　 D. in; while

     

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