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    7．By the year she arrives in London, scientists probably a cure for bird flue. A. will be discovering B. are discovering C. will have discovered D. have discovered 【查看更多】

     

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    By the year she arrives in London, scientists probably ____ a cure for bird flue.
        A. will be discovering   B. are discovering    C. will have discovered    D. have discovered

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    By the year she arrives in London, scientists probably ____ a cure for bird flue.
    A. will be discovering     B. are discovering
    C. will have discovered    D. have discovered

     

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