There are quite a few old books one the shelf,but ____ of them is useful to him.

There are quite a few old books one the shelf,but ____ of them is useful to him.
A.both B.all C.neither D.none
为什么不能选B?
英语人气:386 ℃时间:2020-03-28 10:17:45
优质解答
因为后面是is所以是none选B的话 后面是are
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