◎ 题干
Pollution problem is very serious. Can we _____?
[     ]
A. work out
B. work out it
C. work it out
◎ 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“Pollution problem is very serious. Can we _____?[ ]A. work out B. work out it C. work it out …”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。