Mrs. White has a son called Sam White. The young man works in a post office in a city. One day he asks his mother to visit the city. The old woman is very happy and goes there by train, but she doesn’t know where the post office is. She begins to look for it, but she can’t find it. At a bus stop she asks an old man. “Excuse me. Sir! How can I get to the post office?”

The old woman gives Sam’s letter to him. After reading the letter, the old man says, “Walk along this street and take the fourth turning on the left. His post office is just there.” Mrs. White thanks the old man and soon finds her son. They’re very happy. A week later the woman gets to the zoo. She sees many kinds of animals. But again, she can’t find the way to the post office. At the same bus stop, she meets the same old man and she asks the same question again.

“Oh, dear!” The old man shouts, “Are you still looking for your son?”