( )It's very nice you to help me. A．to B．of C．at D．with

It's very nice! ( )oh,it's very nice It's very nice ( )you. It's very nice.It's yellow. It's very nice是什么意义 It,s very nice of you,中文, It's very nice of you It's very nice ___you to write____me What______this one?------------It;s very nice. It must very nice it looks very nice. I want the _____ .It's very nice. I want the _____ .It's very nice. it's very nice of you同义句 It's very nice of you 的中文 英语 it's very nice of you的回答 It's very nice of you 改为同义句 it's very nice of you ----(say) so