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    【题目】He asked me _____ finished my work.

    A. whether did I B. if I did C. whether had I D. if I had

    【答案】D

    【解析】一般疑问句改为间接引语时，引导词用if/whether，疑问语序改为陈述语序；主句的时态如果是一般过去时，从句 时态要相应地退一个时态，改为过去完成时。

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