One day an old woman wants to go to London to see her son. She gets up early and gets to the small station at nine o'clock in the morning. Because this is her first trip to London, she doesn't know the train time. She is very worried（担心）. Just then ,she sees a little boy running to her. She stops him and asks him what time the train comes and leaves for London.

The boy looks at the woman and says , "tu: tu: tu: tu : tu:" then he runs away . The old woman is very surprised（惊讶） and get angry(生气的）. She sits in a chair and thinks ,and then she begin to smile. She says "what a clever boy! He tells me the time in such a way. "