根据材料内容选择最佳答案。

    My name is Ann. I have a happy family. My father is a doctor in a big hospital. My mother is a manager and she works at a big company. They are very busy. Sam is my brother. He is a student in Class 2. I' m a student in Class 2, but we aren't in the same grade. We have six lessons a day. We're busy too.

    Next Sunday is my mother's birthday. Sam and I want to buy her a present. But we don't know what to buy. She likes watching football games on TV, but she doesn't like playing football. So we can't buy her footballs. There is some coffee in front of her computer Coffee helps my mother work. So we think a coffee cup(杯) is a good present. What about my father? He buys a blue dress for my mother Blue is her favourite colour.