They are all interested in the newly-built apartments along the river really want to buy

问题补充：

They are all interested in the newly-built apartments along the river, really want to buy them yet.

A. none of them

B. neither of them

C. none of whom

D. neither of whom

答案：

A. none of them

B. neither of them

(答案→)C. none of whom

D. neither of whom

解析： 本题的先行词是They，这是一个表示人的先行词，故使用whom指代先行词在句中作为of的宾语。根据前面的all可知they表示的是三者或者三者以上，故不能使用neither。只能使用none表示特定范围之内一个也没有。句意：他们都对新建的河边的公寓很感兴趣，但是没有一个人真正想买。故C正确。