题目内容
【题目】 Not until all the fish died in the river, ____ how serious the pollution was.
A. did the villagers realizeB. the villagers realized
C. the villagers did realizeD. didn’t the villagers realize
【答案】A
【解析】
考查倒装。句意:直到河里的鱼都死了,村民才意识到污染有多么严重。not until位于句首时,采用部分倒装,即:助动词+(主句)主语+谓语,故A项正确。
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