◎ 题干
Don't throw litter around. Please _____ .    
[     ]
A. pick it up
B. pick up it
C. pick up them
D. pick them up
◎ 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“Don't throw litter around. Please _____ .[ ]A. pick it up B. pick up itC. pick up them D. pick them up…”主要考查了你对  【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。