题目内容
I.单项填空
1. —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
1. D
I. 1. D解析:quantities of后接名词作主语时,谓语动词用复数形式。句意:“这个 湖为什么闻起来有臭味?”“因为大量的 水被污染了。”
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