◎ 题干

—How long does Kitty spend on her homework?
—________.
A.Half an hour B.A half hourC.Half hours D.An 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“—How long does Kitty spend on her homework?—________.A.Half an hour B.A half hourC.Half hours D.An 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。