It's been nice to know you.I have to go,see you next time.

It's been nice talking to you的意思 It's nice to It's been nice to know you.I have to go,see you next time. It's been nice talking to you.为什么用is不用has? it's a nice car._____ have been in it It’s nice to meet you中的nice是什么意思 it's so nice to hear your It's very nice ___you to write____me It's nice of you to say It's nice to meet you again It's nice to meet you finally It's nice to be back It's nice of you to help It's nice ---(talk) to you it's nice of sb to do It's nice to be important,but it's more important to be nice什么意思 it's a nice car.----have you been in it?just to ShanghaiA.how much B.how long C.how soon D.how far It's nice to meet youIt's在这里是什么意思