◎ 题干
There are quite a few old books on the shelf, but _____ of them is useful to him.      
[     ]
A. both                      
B. all      
C. neither                  
D. none
◎ 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“There are quite a few old books on the shelf, but _____ of them is useful to him. [ ]A. both B. all C. neitherD. none…”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。