阅读对话，回答问题。

    China is a big country. The weather in the south(南方)is different from that in the north(北方). Beijing is a beautiful city of China. In this city, spring is warm; summer is hot; autumn is cool and winter is cold. But in the south of China, it is always warm. In Hong Kong and Sanya, people like to swim in the sea. They can't see snow. In the north of China, people can make snowmen and play with snowballs in winter. People like to spend their holiday(度假) in the south in winter, and in the north in summer.

    I'm Lucy. I have a happy family. There are four people in my family. My birthday is on January 1st. It's New Year's Day, too. My family and I will have a big dinner on that day. I have a little brother. He is four years old. His birthday is in winter. It's very cold but we can make a snowman. My mother's birthday is in March. My father's birthday is in March，too. We can plant trees and fly kites.

    What is Mary's family doing now? Let's have a look! Dad is watching TV in the living room. Mum is cleaning the kitchen. Mary is reading in bedroom. Grandpa is listening to music and grandma is dancing. Where is Bobbi? Look! Bobbi is playing water. Bobbi is a dog. May's family like it very much. This Saturday, the family is going to have a picnic in the park with Bobbi.

根据上面短文，用完整的句子回答下面问题。