◎ 题干
Tom is tall, but his sisters, Mary and Kathy,       short.
A.are both B.all are C.are all D.both are
◎ 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“Tom is tall, but his sisters, Mary and Kathy, short.A.are bothB.all areC.are allD.both are…”主要考查了你对  【副词的比较级,副词的最高级】【关系副词】【疑问副词】【频度副词】  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。