阅读短文，根据短文内容，从每小题所给的三个选项中，选出能完成所给句子的最佳答案。
Jack is my brother. He is 13 years old and I am 12. We usually go to school on foot together, and sometimes we go by bike. Tomorrow is Saturday. We aren't going to school. We are going to get up early. In the morning, we are going to the bookstore to buy some books. We are going there by bus. We are going to have lunch in KFC. In the afternoon, we are going to play ping-pong . At about 5:00, We are going home. Jack is going to cook the dinner and I'm going to water the flowers. We are going to to do our homework in the evening.
