◎ 题干
Bad habits are easily _______ while good ones are hard to develop.
A.kept upB.caught up
C.drawn upD.picked up
◎ 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“Bad habits are easily _______ while good ones are hard to develop.A.kept upB.caught upC.drawn upD.picked up…”主要考查了你对  【动词短语】【动词】  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。