1 Nice to do/doing ......<很高兴......〉
这是跟人交往的必备句型，别看它很简单，要真正用好用活却没那么容易。
一 如果是初次见面，就说：
Nice to meet you. <很高兴认识你。〉
二 如果是见过面的，这可以说：
Nice to see you again.<很高兴再次见到你。〉也可说 Good to see you again. Glad to see you again. Great to see you again. Pleased to see you again.
三 外出旅行回来，你还可以说：
Nice to be back home again.<又回到家了，真是高兴。〉
Nice to see some friendly and familiar faces.<很高兴看到几张友好和熟悉的面孔。〉
四 道别时，最好说一声：
Nice meeting you.<认识你很高兴。>
五 结束谈话时，说一声：
Nice talking to you.<跟你谈得很开心。>
实战对话
A Excuse me.I have go to library. Nice talking to you.
B Me too.See you later！
A See you！
总结
Nice to do....是见面时说的，而Nice doing ....是将要分别时说的。