◎ 题干
—John, how old is your grandfather?
—We had a party for his _______ birthday last week.

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A. Eighty; eightieth
B. Eighty; eighty
C. Eightieth; eighty
D. Eightieth; eightieth
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—John, how old is your grandfather? —_______ We had a party for his _______ birthday last week.[ ]A. Eighty; eightieth B. Eighty; eighty C. Eightieth; ei…”主要考查了你对  【基数词】【序数词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。