◎ 题干
—  You should have thanked her before you left.
—  I meant ____, but when I was leaving I couldn't find her anywhere.
[     ]
A. to do    
B. doing  
C. to    
D. doing it
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“—You should have thanked her before you left.— I meant ____, but when I was leaving I couldn't find her anywhere. [ ]A. to doB. doingC. to D. doing it…”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。