Not until all the fish died in the water _____ how serious the pollution was.
A．did the villagers realizeB．the villagers realized
C．the villagers did realizeD．didn’t the villagers realize
A

試題分析:考查倒裝句。Not until 放句首時，主句要用部分倒裝語序，所以A選項正確。句意：直到水里所有的魚都死了，村民們才意識到污染是多么的嚴(yán)重。
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