◎ 题干
_____ of the swamps have become _____.       
[     ]
A. Any; pollute
B. Some; pollution
C. Some; polluted
D. Any; polluted
◎ 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“_____of the swamps have become_____. [ ]A. Any; polluteB. Some; pollutionC. Some; pollutedD. Any; polluted…”主要考查了你对  【不定代词】【分词】  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。