阅读下面语篇并根据语篇内容回答问题
    A train stopped at a small station. A man on the train looked out of the window and saw a woman. The woman was selling cakes, and the people from the strain bought them. The man wanted to buy a cake, but the woman was far away from him. It was raining, and he didn't want to go out. Suddenly he saw a boy. The boy was walking on the flatform（月台）not far from him. “Come here.” He said to the boy, “Do you know how much each of the cakes is?” “Five cents（分）.” The boy answered. The man gave the boy ten cents and asked him to buy two cakes. “One is for me and the other is for you” he told the boy. Some minutes later, the boy came back. He was eating a cake. He gave the man five cents and said, “There was only one    cake left（剩下的）.”