完成对话，将方框中的序号填在对话里相应的横线上。
A：Hello, Mary. __________?
B：I’m 13 years old.
A：I’m 13, too. ___________ then ?
B：My birthday’s on the 25th of October.
A：My birthday’s on the 23rd of October.
So_________________________.
B：Yes. But _______________.
A： . I’ll eat more and do more exercise.