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    10．So concentrated on her experiment that she it was time to pick up her daughter. A．she was; didn’t realize B．was she; didn’t realize C．she was; hadn’t realized D．was she; hadn’t realized 【查看更多】

     

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     So concentrated ________ on her experiment that she ________ it was time to pick up her daughter.

    A. she was; didn’t realize                                  B. was she; didn’t realize

    C. she was; hadn’t realized                                D. was she; hadn’t realized

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