阅读短文,回答下列问题。 Mr and Mrs Green's house is far from the city. There are no big shops near their home. So they only go shopping at weekends.
One Saturday morning, Mr and Mrs Green go shopping with their son, Tom. Mr Green drives the car to a big shop. It sells clothes. Mrs Green likes them. So she chooses a dress and tries it on. It looks great on her. She buys it for herself. Then she buys a shirt for her son and a sweater for her husband. After that, they go to a supermarket to buy some food and fruit.
At about eleven o'clock, they all feel hungry. They have their lunch at a restaurant. After lunch, they want to go home. But they cannot find their way. Mr Green drives over to a woman and asks, "Excuse me, could you tell me where I am now?" The old woman looks at him and the car, "You are in your car, sir," she answers.