一道简单的英语选择,非常急!

问题描述:

一道简单的英语选择,非常急!
It's impolite____you to speak to your father like that.
填for还是of?为什么!

It's impolite____you to speak to your father like that.
选:of
这是对一个行为的评价.
根据情形,of可以有“出自”的意思,行为“出自”你.
而for,是“对于”的意思.
因此选择of.