— Why is the chemical plant closed?— Because large quantities of waste water __
题型:不详难度:来源:
— Why is the chemical plant closed? — Because large quantities of waste water ______ into the Yangtze River.A.has been released | B.is being released | C.was released | D.have been released |
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答案
D |
解析
试题分析:考查主谓一致。a quantity of+可数名词复数时,谓语用复数;+不可数名词时,谓语用单数;large quantities of大量的......,后加不可数名词或可数名词复数,谓语统一用复数形式,排除A、B、C,故选D。 |
举一反三
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