Question

It's very kind of you to say so.什么意思

Answer 1

It's-very-kind-of-you. 真太 双语例句 依. "It's" (with an apostrophe) should be used only as a contraction for "it is". it's（带撇号）能用作itis缩约形式 贰. In " It's a bloody miracle! ", " bloody " is used as an intensive word. It‘sabloodymiracle! 句, bloody用作加强语气词

Answer 2

这个不定式作主语的特殊局型
it is+adj+of sb+to do sth
这里的形容词表示人的本质特征，所以用of
如果形容词描述的是主语所做的事情这个时候要用for不能用of