Question

The aged are close companions, and many of       have known each other for decades.

A．them

B．that

C．whom

D．what

Answer 1

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。