◎ 题干
Jack is _________years old. Today is his _________ birthday.
A.sixteenth; sixteen B.sixteen; sixteen
C.sixteen; sixteenth D.sixteenth; sixteenth
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Jack is _________years old. Today is his _________ birthday.A.sixteenth; sixteen B.sixteen; sixteenC.sixteen; sixteenthD.sixteenth; sixteenth…”主要考查了你对  【基数词】【序数词】【时刻】【分数】  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。