题目内容：

完成对话。

A: Good morning, Sam!

B: Good morning, Alice! ____1.___ you going?

A: I want to go to the food store and ______2.____ a birthday cake for my ___3._____.

B: ____4.____ is your brother's birthday?

A: His birthday is ______5.__ January 27th.

B: Which year was he born (出生)in？

A: He was born in 1997.

B: Um, it's 2012, so he is ______6.____ years old now. Do you ____7.____to have a birthday party for him?

A: Sure!

B: Can I go to your ____8.___ birthday party?

A: Yes, you ____9.____. You are also his good friends. Welcome to the ____10.__.