◎ 题干
Only when all the fish in the lake died _____ how serious the pollution was.
[      ]
A. did the villagers realise
B. the villagers realised
C. had the villagers realised
D. the villagers had realised
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Only when all the fish in the lake died _____ how serious the pollution was.[ ]A. did the villagers realiseB. the villagers realised C. had the villagers rea…”主要考查了你对  【一般过去时】【部分倒装】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。