◎ 题干
—What should we do to prevent H7N9 bird flu?
—We must           from crowded places.
A.come outB.pass awayC.put outD.keep away
◎ 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“ —What should we do to prevent H7N9 bird flu? —We must from crowded places.A.come outB.pass awayC.put outD.keep away…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。