阅读理解 In 1995, Ray Kroc visited a small restaurant in California. The owner of it was the Mc Donald (麦当劳) brothers. They built it by the road, so people could drive up to the restaurant, buy food without getting out of their cars and drive away easily. They callecl it 'drive-in' restaurant. Ray Kroc saw the bright future of the restaurant of this kind. He bought the restaurant and used the brothers' family's name for his new restaurant. The first Mc Donald's restaurant chain(连锁店) was born. Now there are more than 5,000 restaurants in the United States and in 60 other countries. The largest Mc Donald's restaurant is in Beijing, China. It has l,000 workers. About seven hundred people can sit and eat there at one time. 根据短文内容,回答下列问题 1. Who opened the first Mc Donald's restaurant chain? 2. How do you buy food in a 'drive-in' restaurant? 3. Why did Ray Kroc buy the two brothers' restaurant? 4. Where can we find a Mc Donald's restaurant? 5. How many people can sit and eat in the biggest Mc Donald's restaurant at onetrme?