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    【题目】_______from other continents for millions of years, so there are many plants and animals in Australia that cannot be found anywhere else in the world.

    A. Being separated

    B. Separated

    C. It has been separated

    D. Having separated

    【答案】C

    【解析】本题的题眼是句子中间的连词so，所以前后应该用两个分句，而不是分词短语作状语，所以不能从A．B和D中选择答案。

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