◎ 题干
He wrote his         novel when he was     .
A.five, fifties B.fifth, fifty
C.fifth, fifteen D.five, fifty
◎ 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“ He wrote his novel when he was.A.five, fiftiesB.fifth, fiftyC.fifth, fifteenD.five, fifty…”主要考查了你对  【助动词】【介词短语】【固定搭配】【疑问词组】  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。