◎ 题干
When I asked her what she did yesterday, she pretended ___ about it.

A. not to hear
B. not having heard
C. to not have heard
D. not to have heard
◎ 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“When I asked her what she did yesterday, she pretended ___ about it. [ ]A. not to hearB. not having heard C. to not have heardD. not to have heard …”主要考查了你对  【不定式的完成式】  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。