◎ 题干
He was so pleased with all _____ we had done for him _____ he wrote us a letter to praise for it.

[     ]

A. that, that
B. what, that
C. that, which
D. which, what
◎ 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“He was so pleased with all _____we had done for him _____he wrote us a letter to praise for it. [ ]A. that, that B. what, that C. that, which D. which, what…”主要考查了你对  【关系代词】【从属连词】【限制性定语从句】  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。