◎ 题干

The old lady was so pleased with all ______ we had done for her ______ she wrote us a thank-you letter.
A.what; thatB.that; thatC.which; thatD.that; what
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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 old lady was so pleased with all ______ we had done for her ______ she wrote us a thank-you letter.A.what; thatB.that; thatC.which; thatD.that; what…”主要考查了你对  【并列连词】【从属连词】  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。