It is very kind for you to do me a favor.请问这是对的吗?请翻译

It is very kind of him to cook food for his mother.为什么用kind of It is very kind of him to cook food for his mother.为什么用kind of It is very kind of you 翻译 it is very kind () you填介词 it is very kind of you . 开头开头是 it is very kind and generous of your warm hostility还是开头是 it is very kind and generous for your warm hostility? thank you very much.it is so kind for you to help us如何改错 It is not very usual for the same kind of weather to stay long.是什么意思?多谢! It's very kind of you...和 It's very kind for you...的区别 it is very hard for it's very kind of you[ ] ( do)that for me. It is very kind of him to tell me how to study and set goals for life如何翻译? It is very kind of you…… 的同义句Thanks for …… 不可以么~~ It is very kind for you to do me a favor.请问这是对的吗?请翻译 It is very kind------you to help me with my math.It is hard------me to learn it well.(of:for) It is very kind of you to help me. It is very kind of you…… 翻译 It is very kind of you!和badluck什么意思