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    My grandfather is man. A. ninety years old B. ninety-years-old C. a ninety- year-old D. a ninety years-old 【查看更多】

     

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    My grandfather is _______ man.
    [     ]
    A. ninety years old
    B. ninety-years-old
    C. a ninety-year-old
    D. a ninety years-old

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