— Why does the lake smell terrible? — Because large quantities of water ____.
A．have polluted
B．is being polluted
C．has been polluted
D．have been polluted
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◎ 解析
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◎ 知识点
根据魔方格专家分析，试题“— Why does the lake smell terrible?— Because large quantities of water ____.A．have pollutedB．is being pollutedC．has been pollutedD．have been polluted…”主要考查了你对 【主谓一致】 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。
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