Not until all the fish died in the river...

Not until all the fish died in the river ________ how serious the pollution was.

A．did the villagers realize

B．the villagers realized

C．the villagers did realize

D．didn't the villagers realize

A 【解析】试题分析：考查倒装句。句意：直到河里所有的鱼都死了，村名们才意识到污染是多么的严重。until用在否定句中,为了强调时间状语,常用倒装语序或强调结构.将否定副词not移到until的前面,主句的谓语动词由否定式变成肯定式,在主句之前加助动词,构成主谓倒装，故选A项。考点：考查倒装句

考点分析：

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