◎ 题干
If you see any litter on the playground, you'd better               .
[     ]
A. pick up it
B. pick it up
C. go away
D. not touch them
◎ 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“If you see any litter on the playground, you'd better .[ ]A. pick up itB. pick it upC. go awayD. not touch them…”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。