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题目
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-Why does the river smell terrible?
-Because large quantities of water______.
A.have been pollutedB.is being polluted
C.has been pollutedD.have polluted

答案
A
解析

试题分析:“受到污染”即“被污染”应该用被动语态,故排除D选项。“河水被污染”已经造成后果,故用现在完成时,所以排除B选项。large quantities of water中是large quantities作主语,故谓语动词用复数形式。选项A 正确。句意:——这条河的河水为什么发臭啊?——因为大量的河水被污染了。
核心考点
试题【-Why does the river smell terrible?-Because large quantities of water______.A.ha】;主要考察你对一般现在时等知识点的理解。[详细]
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