◎ 题干
I  have always been honest and straightforward, and it doesn't matter _____ I'm talking to.
[     ]
A. who is it
B. who it is
C. it is who
D. it is whom
◎ 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“I have always been honest and straightforward, and it doesn't matter _____ I'm talking to. [ ]A. who is it B. who it is C. it is who D. it is whom …”主要考查了你对  【主语从句】  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。