input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Dick was driving a large American car. As soon as the race started, he pulled out in front. As the race went on, he kept the first place. And he was far ahead of Wilson, the man in the second place. When the race was almost over, some people stood up and left. "Why did stay?" they thought. They were sure they knew who would win. But things did not go as they thought. A strange noise came from Dick's car. It slowed down. Something was wrong. Dick knew his car would not go far. His only hope was that he would make it to the finish. But on his last lap , the car stopped. Wilson's car roared by. Dick saw it go by. He knew he could not win now. "But I can finish the race," he thought. And he got out of his car. So did his assistant. They began to push the car to the finish. Wilson went by them again and again. He was on his last lap. He was going to win. Dick and his friend did not care. They went on pushing. At first, all eyes were on Wilson. He crossed the line. And the race was over. He won! Dick and his friend pushed on. At last, the car crossed the line. By then all the people shouted for them. They shouted more than they did for Wilson. This was a different kind of winner! Options: A China B Japan C The United States D Canada Answer: C The United States Question:???
output answer: Dick was driving a large car that made in _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Most Americans enjoy moving from place to place. For example, they often drive their cars 120 to 160 kilometres away just to have dinner with a friend or even fly to London or Paris just to watch a football match. In some states only one person in five lives in a place for more than five years. One may be born in one city, and go to school in another. He may finish his middle school in two or three cities, and then go to college far across the country. When he begins to work, he may possibly move from job to job. Moving from one job to another, which is called "job-hopping", can be seen in many places in the United States. Job-hopping does good to workers because every change of a job gives them a chance to get better pay. And job-hopping also gives bosses the chance to get new ideas and skills from him or her. Options: A About 20% of the people stay in one place for over five years. B Children have to finish middle school in one place. C People go to the nearest college. D When people begin to work, they don't move any more. Answer: A About 20% of the people stay in one place for over five years. Question:???
output answer: Which of the following is true?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: John and Bobby joined the same company together just after they completed their university studies the same year. Both of them worked very hard. Several years later, however, the boss promoted Bobby to manager but John was still a worker. John could not take it, and gave his resignation to the boss. He complained that the boss did not think much of those who were hard -working, but promoted only those who flattered him. The boss knew that John had worked very hard for the years. He thought a moment and said, "Thank you for what you said, but I hope you will do one more thing for our company before you leave" John agreed. The boss asked him to go and find anyone selling watermelons in the market. John went and returned soon. He said he had found a man selling watermelons. The boss asked how much they cost every kilogram. John shook his head and went back to the seller to ask and returned to tell the boss $1.2 every kilogram. The boss told John to wait a second, and he called Bobby to come to his office. He asked Bobby to go and find anyone selling watermelons in the market. Bobby went and returned, saying, "Boss, only one person is selling watermelons. $1.2 every kilogram, and $10 for 10 kilograms. The seller has 340 melons. On the table there are 58 melons, and each weighs about 2 kilograms. They were brought from the South two days ago. They are of good quality." Hearing what Bobby said, John realized the difference between himself and Bobby. He decided to stay and learn from Bobby. Options: A Angry. B Nervous. C Unlucky. D Helpless. Answer: A Angry. Question:???
output answer: How did John feel when Bobby was promoted to manager?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Have you ever wondered how and why a fall leaf changes color? We first have to understand what leaves are and what they do. Plants are the world's food factories. Plants take water from the ground and take CO2from the air. Plants use sunlight to turn water and CO2into glucose . Glucose is a kind of sugar. Using it as food, plants get energy and grow. Plants using sunlight to turn water and CO2into sugar is called photosynthesis . _ helps photosynthesis. It gives plants their green color. As summer ends and autumn comes, the days get shorter and shorter, and trees "know" to begin getting ready for winter. During winter, there is not enough light or water for photosynthesis. Trees rest during this time and live on the food they store during the summer. They begin to shut down their food -- making factories. As the green chlorophyII disappears from the leaves, we begin to see yellow and orange leaves. These colors have been in the leaves all the time. We just can't see them in the summer, because they are covered up by the green chlorophyII. The bright reds and purples we see in leaves are made mostly in autumn. In some trees, glucose is caught in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn turn this glucose into a red color. The brown color of trees is made from waste left in the leaves. It is mixture of all these things. It makes the beautiful leaves during autumn. . Options: A What's photosynthesis? B How and why leaves change colors? C Different kinds of leaves. D How the seasons change. Answer: B How and why leaves change colors? Question:???
output answer:
What's the main meaning of this passage?