It is nice of

It is nice of It is nice of you的用法 it is nice/kind of sb. it is nice of you to answer it It is very nice of you为什么用of it is nice to have you here,it is nice of have you here 这两句语 ----You sweater look nice.Is it made of wool? It is ____ nice of you to say so. 英语翻译翻译it is really nice of you say so is,you,so,it,nice,of(.)连词成句 用 is,you,so,it,nice,of(.) 造句 it is power of the nice girl----怎么翻译?