【题目】They were talking about the persons and things __________ they could remember in their former school.
A. where B. whom
C. that D. when
在线课程【答案】C
【解析】
考查定语从句。句意：他们在谈论他们在以前的学校里能记住的人和事。先行词是persons and things，定语从句缺少宾语，所以用关系代词that或which引导定语从句，因为先行词有人也有物，所以用that引导定语从句，故选C。