◎ 题干
They produced two reports, ____ of which contained any useful suggestions.
[     ]
A. either
B. all
C. none
D. neither
◎ 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“They produced two reports, ____ of which contained any useful suggestions. [ ]A. either B. all C. none D. neither …”主要考查了你对  【不定代词】  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。