阅读理解

    It's Sunday. There are many people in the bus. An old man is looking here and there. He wants to find an empty seat. Then he finds one. He goes to it. A small bag is on the seat. And a young man is beside it.

    "Is this seat empty?" asks the old man.

    "No, it's for an old woman. She went to buy some bananas," says the man. "Well, let me sit here, please, I'll leave here when she comes back," says the old man.

    The bus starts, "She hasn't come, but her bag is here. Let me give her the bag." Then the old man was going to throw the bag out.

   The young man shouts, "Don't throw it! It's my bag!"