请问,how can you ask such a question as “how much do you earn?” of my father?请问,这里为什么用of?

问题描述:

请问,how can you ask such a question as “how much do you earn?” of my father?
请问,这里为什么用of?

我父亲的这个问题。所属,正像a map of bj.内容所属。

a question of my father
a question of sb为固定结构