问题
选择题
They talked for about an hour of things and persons _____ they remembered in the school.
A．which
B．that
C．who
D．whom
答案
B
题目分析：句意：他们回忆起了在学校时的人和事，谈了一个小时。此空后面是定语从句，先行词是things and persons，当先行词即有人又有物时，定语从句由that引导。故答案选B。
考点：