补全对话。
![](https://img.ixiawen.com/uploadfile/2017/0525/20170525011459247.gif)
A: Which is your favorite festival in a year?
B: 1_______ is my favorite festival.
A: 2_______ is it?
B: It's 3________ 15th August.
A: 4_______ do you like it so much?
B: My family always has a party. And I can eat 5_______.
A: What do you think of the food?
B: It's delicious.