◎ 题干
The Nile River ____ flood large areas but now the water ____ produce electricity.

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A. used to; is used to
B. used to; used to
C. was used to; is used to
D. was used to; used to
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The Nile River ____ flood large areas but now the water ____ produce electricity. [ ]A. used to; is used to B. used to; used to C. was used to; is used to…”主要考查了你对  【动词短语】【一般现在时的被动语态】  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。