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题型:单选题 题类:常考题 难易度:普通

黑龙江省哈尔滨市第三中学校2018-2019学年高二下学期英语期中考试试卷(音频暂未更新)

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
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