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?

分类: 作业答案 • 2022-01-02 15:56:41

问题描述：

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?

答