◎ 题干
You should do more ______. Don't always sit at the desk busy doing your ______.

A. exercise; exercises
B. exercises; exercise
C. exercises; exercises
D. exercise; exercise
◎ 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“You should do more ______. Don't always sit at the desk busy doing your ______. [ ]A. exercise; exercises B. exercises; exercise C. exercises; exercises…”主要考查了你对  【可数名词(单数名词,复数名词)】【不可数名词】  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。