Largequantitiesofpollu

发布时间：2020-07-11 12:37:47

Large quantities of polluted water_____ into the sea so that lots of fish died.













A.is flowing












B.was flowing











C.are flowing











D.were flowing

网友回答

D解析 quantity作主语时,谓语动词要与quantity的单复数保持一致, 此处quantity为复数，再由后一句的时态可知
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