◎ 题干
            all the required papers, he didn't answer the questions fluently in class.
[     ]
A. Having not read  
B. Not having read
C. Not read  
D. Not to read
◎ 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“ all the required papers, he didn't answer the questions fluently in class. [ ]A. Having not readB. Not having read C. Not read D. Not to read…”主要考查了你对  【现在分词的完成式】  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。