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    15．Peter offered us a lift when he was leaving the office.but our work .we refused the offer. A．not finishing B．was not finished C．not being finished D．not having finished 答案 C 【查看更多】

     

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    Peter offered us a lift when he was leaving the office，but our work ________，we refused the offer.

    A．not finishing 　　　　　　　　　　　　 B．was not finished

    C．not being finished 　　　　　　　　　　 D．not having finished

     

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