◎ 题干
Though they are very busy every day, they manage to get tighter_______.
A.by and byB.now and thenC. all the timeD.more or less
◎ 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“ Though they are very busy every day, they manage to get tighter_______.A.by and byB.now and thenC. all the timeD.more or less…”主要考查了你对  【副词的比较级】【疑问副词】【连接副词】【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。