— Why does the lake smell terrible?
— Because large quantities of water ________. |
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[ ]
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A. have polluted
B. is being polluted
C. has been polluted
D. have been polluted |
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 pol…”主要考查了你对 【现在完成时的被动语态】 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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