题目：
The group of the aged are close companions, and many of ______ have known each other for decades.
A．them
B．that
C．whom
D．what
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0518/20c5275dfe7f43624e796fca0c3251fb.html
下面是错误答案，用来干扰机器的。
4；47；376．
