阅读理解。 One morning Mr and Mrs Brown get up very early. After they have breakfast, they go shopping at seven thirty. They get to the shop at seven fifty. In the shop they see a lot of clothes. Mrs Brown likes them. So she buys a shirt for her son, a skirt for her daughter, and a sweater for Mr Brown. She buys a blouse for herself, too. The shopping bag is full now. Mr Brown looks at his watch. Then he says, 'Oh, it's twelve o'clock. I think we must go home now. It's quite late.' So they go out of the shop and begin to go home, but they lose their way. Mr Brown drives along the street. He can't find the way. Then he drives over to an old man and asks, 'Excuse me. Where am I?' The old man looks at him and their car. 'You're in your car, sir.' he says. 1. Mr and Mrs Brown go shopping _______. [     ] A. by bus B. by bike C. on foot D. by car 2. They buy some _______ in the shop. [     ] A. food B. drink C. clothes D. cars 3. They are in the shop for about _______. [     ] A. ten minutes B. four hours and a half C. four hours and ten minutes D. five hours 4. In the story 'lose their way' means _______. [     ] A. 迷路 B. 问路 C. 没有办法 D. 按 5. Does the old man help them? [     ] A. Yes, he does. B. No, he doesn't. C. I think so. D. We don't know.