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    【题目】I soon found that the work I was doing had already been done by someone else —__________ I was wasting time.

    A. as a result B. in the meantime

    C. in other words D. for one thing

    【答案】C

    【解析】A项表示作为结果;B项表示与此同时;C项是换句话说,符合题意;D项是首先.根据句意:不久我就发现我正在做的工作已经被别人做完了,换句话说,我在浪费时间.

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