It’s kind of you to think so much of us.It is not hard for one to do a bit of good.为什么一句用of而另一句用for

it's kind of和it was kind of 有什么不同如it's kind of you to do thisit was kind of you to do this It's kind of you it's kind of you it's very kind of you to help me.翻译 it's very kind of you to give me a it's kind of you to say so It's very kind of you to say so It's very kind of you to meet me.是什么意思 英语!it's kind of you to help me 填空()you like () to read the letter to you?It's very kind of you. 填空()you like () to read the letter to you?It's very kind of you.哈呀裤 it's so kind of you It's very kind of you. It’s very kind of you 急 It's rery kind of you ----It's kind of you to help me .----It's my-----(please) It's very kind of you to tell me the truth.of you 作什么成份 it's kind of you to have given us much help.请问kind of you 如何翻译?