◎ 题干
His writing is so confusing that it's difficult to make out ________ it is he is trying to express.
[     ]
A. that  
B. how
C. who  
D. what
◎ 答案
查看答案
◎ 解析
查看解析
◎ 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.[ ]A. thatB. howC. whoD. what…”主要考查了你对  【连接代词】  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。