题目内容：

在下列横线上填入适当的话语，使对话完整正确。

Jane : Hello !

Mike :Hello ! May I speak to Ann ?

Jane : 1.___________________

Ann : (A few seconds later) Hello !

Mike : Hello ! Ann, this is Mike. Are you free tomorrow?

Ann : 2.                  What's up?

Mike: We are going hiking tomorrow.

Ann: Yes, I'd love to. 3.__________________

Would you like to join us?

Mike: Let's meet outside Zhongshan Park at 6:30 tomorrow morning

Ann: OK. See you tomorrow.

Mike :4.____________________