◎ 题干
— You should have thanked the hostess before leaving. 
— I meant _____. But I couldn't find her when I was leaving.

A. to do
B. to
C. doing
D. doing so
◎ 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“—You should have thanked the hostess before leaving.— I meant _____. But I couldn't find her when I was leaving. [ ]A. to do B. toC. doing D. doing so …”主要考查了你对  【省略句】  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。