定语从句中的关系代词前的介词怎么确定

Question

如题所述

Answer 1

介词的来源有三种

从句中的固定搭配

例如：Do you know the man with whom my mother is talking now?

talk with

与先行词的固定搭配

例如：Do you know the day on which he was born?

通过整句的意思推断出

He graduated from a famous university，after which he went abroad to find a job.