◎ 题干
His writing is so confusing that it's difficult to make out ________ it is he is trying to express.(2011·安徽)
A.thatB.howC.whoD.what
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“ His writing is so confusing that it's difficult to make out ________ it is he is trying to express.(2011·安徽)A.thatB.howC.whoD.what…”主要考查了你对  【宾语从句】  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。