◎ 题干
Tom pretended          it, but in fact, he knew it very well.    

A. not listen to    
B. not to hear about    
C. not to have heard about    
D. to be not listening to
◎ 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“Tom pretended it, but in fact, he knew it very well.[ ]A. not listen toB. not to hear aboutC. not to have heard aboutD. to be not listening to…”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。