◎ 题干
All________ made______ possible for China to succeed in carrying on its reforms and open-door policy.

 [      ]

A. what happened; it
B. what happened; that
C. that happened; it
D. that happened; that
◎ 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“All________ made______ possible for China to succeed in carrying on its reforms and open-door policy. [ ]A. what happened; it B. what happened; that C. tha…”主要考查了你对  【关系代词】【限制性定语从句】【it的用法】  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。