After dinner they talked about the persons and things they still remembered.A. whichB. th

问题补充：

After dinner they talked about the persons and things they still remembered.

A. which

B. that

C. who

D. what

答案：

A. which

(答案→)B. that

C. who

D. what

解析：考查定语从句：句意：晚饭后，他们谈论他们还记得的人和事情。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，选B。