问题
选择题
The aged are close companions, and many of have known each other for decades.
A．them
B．that
C．whom
D．what
答案
答案：A
本题考查代词。句意：这些老人们是亲密的朋友，并且他们许多人已经相互认识了几十年。本句中and连接两个独立的句子，下文代词指代前文The aged故用人称代词。选项BCD一般用于引导从句，故选A。