◎ 题干
It took him ____ to find the key to the drawer.
A.one and half hoursB.one and a half hours
C.one and a half hourD.one and half hour
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“It took him ____ to find the key to the drawer. A.one and half hoursB.one and a half hoursC.one and a half hourD.one and half hour…”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。