问题
选择题
The old couple has two children, __________ able to come to see them when they feel lonely, however.
A．both of them are
B．neither of them are
C．none of whom are
D．neither of whom
答案
答案：D
考查定语从句。句意：这对夫妇有两个孩子，然而，当他们感到孤独的时候没有一个能来看他们。根据句意可排除A ,由two children可排除C ，B表达不正确，所以选D。