input question: Write a multi-choice question for the following article, with the given choices and answer: Article: In a New York street, a small truck hit a big tree. The truck was full of glasses and they were all broken now. The driver came out of the truck and looked at the broken glasses. He was very sad and people in the street felt sorry for him. Then an old man walked over to the driver. He looked at him for a few minutes and said, "My poor boy, I think you must pay a lot for it." "Yes," was the sad answer. "Well, well," said the old man, "hold out your hat-- here's some money for you, and I can say that some of these people will give you a helping hand, too." With these words, he walked away. The driver held out his hat and over a hundred people came and put their money in it. At last the driver took a bag and put all the money in it. Then he looked at the people and said, "Well, thank you very much. But you didn't know that the old man is the owner of the truck. I'm driving and making money for him." Options: A The old gave the young man a hat. B The old man was the driver's father. C The driver became rich. D The driver had to give the money to the old man. Answer: D The driver had to give the money to the old man. Question:???
output answer: From the passage, we know that _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Tom and I are good friends. Tom is an English boy, but I am a Chinese girl. My name is Li Hua. He is 12 and I am 13. He is in Class One. I'm in Class One, too. Tom has a nice football. He can play it. I have a computer. I can play computer games, but I can't play football. It's difficult. Tom teaches me to play football, and I teach him to play computer games. Now I can play football and Tom can play computer games. Options: A girls B boys C 13 D in Class One Answer: D in Class One Question:???
output answer: Tom and Li Hua are _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Do you have a lucky number? What is it? Many people have a special number that they hope will bring them good luck. In Chinese culture, some numbers are believed to be lucky or unlucky based on the Chinese word that the number sounds similar to. For example, the word for the number 8 sounds similar to the word for "making a fortune ". So, people consider it a very lucky number. Some people will even spend a lot of money to have 8s in their phone numbers or vehicle license plate numbers. The opening ceremony of the Beijing Olympics began at 8:08 p.m. on August 8, 2008. The number 9 is also a lucky number because of its connection to the emperors of China. There were nine dragons on emperors' robes and Chinese myth held that the dragon has nine children. The number 9 also stands for "long lasting". That's why a man always proposes to(---)a woman with 99 or 999 roses. So what's a "bad luck" number in China? It might be 4. Many Chinese people see 4 as a "bad luck" number because it sounds similar to the character for "death". Because of this, many buildings skip the fourth floor, and simply call it the fifth floor. In Hong Kong, some buildings even skip all floors numbered with 4, such as, 4, 14, 24, 34 and all 40-49 floors. Some buildings also skip the 13th floor, as this is considered an unlucky number in many Christian countries. As a result, a building whose highest floor is 50 may have only 35 physical floors. Options: A the shape of the number B the sound of the number in Chinese C the history of the numbers D the sound of the number in English Answer: B the sound of the number in Chinese Question:???
output answer: What makes Chinese people believe a number is lucky or unlucky?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: London has a population of over 7,000,000. From about the year 1800 until World War II, London was the biggest city in the world. But now there are many cities which are much bigger than it. London is famous for many things. Tourists come from all over the world to visit its famous buildings and hear the famous clock, Big Ben. Like many big cities, London has problems with traffic and pollution which stop the city from developing. Over one million people a day use the London underground, but there are still too many cars on the streets. The air isn't clear, but it is anyhow cleaner than it was 100 years ago. For me, the best things about London are the parks. There are five in the city center. But my children's favorite place is Hamleys, the biggest toy shop in the world. Options: A In 1750. B In 1850. C In 1950. D In the 21st century. Answer: B In 1850. Question:???
output answer:
When was London the biggest city in the world?