阅读短文，选出合适的一项。

    There are seven days in a week. They are Sunday Monday Tuesday Wednesday Thursday Friday Saturday. Sunday is the first day of the week. On Sunday, I am playing cards with my friends. Monday is the second. We are walking to school. Tuesday is the third. I often do my homework. Wednesday is the fourth. We are flying kites in the park. Thursday is the fifth. We do my math. Friday is the sixth. We are working hard at school. Saturday is the seventh. We are having fun together.