[题目]-Why does the lake smell terrible?-Because large quantities of water .A. have polluted B. have been pollutedC. is being polluted D. has been polluted 题目和参考答案——青夏教育精英家教网—

【题目】—Why does the lake smell terrible?

—Because large quantities of water .

A. have polluted B. have been polluted

C. is being polluted D. has been polluted

【答案】B

【解析】

试题分析：B；考查性数一致。根据分析，可知时态用现在完成时表示一个结果。主语是large quantities of water是一个复数形式，所以谓语动词也应该用复数形式，水污染应该是被污染，所以谓语还应该体现被动语态。句意：——为什么湖水这么难闻？——因为大量的水被污染了。故选B

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