Her name is Mary. She comes from the US. She is now in China with her parents. She can speak a little Chinese. She is now studying at Wuhu No.1 Middle School. Her parents work as (作为) teachers there. She is a good student. She often goes to school very early. She doesn't like to be late for school. But today she gets up late. She gets to the classroom at 7:30. But there aren't any students in it. What's the matter? The other students are all at home. Today is Sunday!