Please answer this: Write a multi-choice question for the following article, with the given choices and answer: Article: Long-time exposure to air pollution can lead to physical changes in the brain and cause trouble in learning and memory, and even anxiety. This is suggested by the results of new research on mice. While other studies have shown the harmful effects of polluted air in the lungs and heart, this is the first to show the negative effect on the brain. The team of Laura Fonken, Randy Nelson , from the Ohio State University, the USA, has spread to the brain a previous line of research which found that fine particulate matter floating in the air mainly because of air pollution caused by humans, causes swelling in much of the body, and may be related to high blood pressure problems, and some other diseases. In the research Fonken and his colleagues exposed mice to polluted air for six hours each day, five days a week, over a period of 10 months, almost half the average life length of mice. Polluted air contains fine particles created by cars, factories and natural dust. Fine particles of this kind are tiny, about 2.5 micrometers in diameter , or about one-thirtieth the width of a human hair. These particles can go deep into lungs and other organs. The concentration of this particulate material to which they exposed mice is equal to the concentration at which people can be exposed in some polluted urban areas. After a period of 10 months, the researchers got the animals to have a series of behavioral tests. Both the behavior of mice and the results of neurological tests done to them show that those within the polluted air had more problems in learning and memory, and higher levels of anxiety. The results suggest that long-time exposure to polluted air can have measurable negative effects on the human brain and can cause a variety of mental health problems. This could have important consequences for those living and working in polluted urban areas. Options: A Long-time Exposure to Air Pollution B Evidence and Concern of Air Pollution C Measurable Effect on Human Brain D Mental Problems Caused by Air Pollution Answer: D Mental Problems Caused by Air Pollution Question:
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Answer: Which of the following is the best title for the passage?

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: American scientists have developed the first material that repairs itself. The material is a form of plastic that has been engineered to fill breaks in its surface. Plastics are used today in everything. Scientists wanted to find a way to make objects made of plastic last longer. The researchers hope their new discovery can be used to make objects that are difficult or impossible to replace. The surface of plastic objects breaks over time. Very small breaks develop every time a plastic object is used. The researchers wanted to find out how to stop plastic from developing small breaks that weaken and destroy it. They found the answer in the chemical structure of plastic itself. The research team found a way to make plastic that contains very small balloons filled with monomer liquid. When the new plastic cracks, the monomer liquid is let out and flows into the crack. Thus the break is repaired. The repaired plastic has seventy-five percent of the strength of undamaged plastic. The new self-repairing plastic is not yet ready for production. But it has several possible uses. One could be in space vehicles where parts cannot be repaired or replaced. Another possible use might be in bridges. And it could be used in people, to replace bone joints that have become broken or damaged. Options: A plastic that repairs itself B the chemical structure of plastic C permanent material invented D small balloons that makes plastic stronger Answer: A plastic that repairs itself Question:

A: The passage mainly talks about _ .

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: ASK any group of teenagers in the UK what they most like to eat, and foods like pizzas, curries, pasta, burgers and chips are bound to get a mention - and many young people would probably also list hanging out at the local fast-food restaurant as one of their favorite pastimes. But what teenagers like to eat is not necessarily what they should be eating. According to the National Diet and Nutrition Survey, far too many young people in the UK between the ages of four and 18 consume too much fat, sugar and salt in their diet and take in too many calories. Meanwhile their intake of starchy carbohydrates , fibre, iron, vitamins and calcium is too low. For a growing body, eating foods containing plenty of calcium, such as milk, yoghurt and cheese, is particularly important as calcium is essential for the development of healthy, strong bones. Similarly, foods that are rich in iron are good for young, rapidly developing bodies, so red meat, bread, green vegetables, dried fruit and fortified breakfast cereals are also recommended. It is during our teenage years that lifestyle habits can become entrenched , so it is important that young people are educated about what foods are good for them. In 2005, in an attempt to change eating habits and open teenagers' minds to new flavors and new tastes, celebrity chef Jamie Oliver launched a 'Feed Me Better' campaign. As part of a television series, 'Jamie's School Dinners', he worked with teachers and cooks in a number of schools across the UK to provide more healthy, nutritious school meal options. Although the campaign was rather resisted at the beginning, it was generally regarded as a huge success and helped to influence governmental policy on nutritional standards for school meals. No one expects to end the teenage love affair with fast and junk food but, hopefully, if projects like 'Feed Me Better' and the Government's own 'Change4Life' campaign continue to give out the right messages, more young people will understand the importance of balancing occasional treats... Options: A to improve their brainpower B to build healthy strong bodies C to provide energy for their body D to help change their eating habits Answer: B to build healthy strong bodies Question:
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The answer is:
Young people need calcium and iron _ .

Q: Write a multi-choice question for the following article, with the given choices and answer: Article: A boy who was nervous on his first day of school climbed onto a third-floor balcony and put legs over the side. His mother and teachers tried their best to bring him down, but failed. However, a firefighter who dressed as "Spiderman" succeeded in saving him. Firefighter David Smith was called in after the 6-year-old's teachers and mother had failed to get him down from the balcony. "He was asking for his mother, "Smith said. "He was crying, and wouldn't let any of us get near him." After hearing a conversation between the boy's mother and his teachers about his love of superheroes , Smith hurried home to get his Spiderman clothes. "I told him 'Spiderman is here to save you. No one will hurt you now,'" Smith said. "Then I told him to walk slowly toward me. I was really nervous that he might fall if he got too excited and started running." Then the crying boy broke into a smile and walked into the fireman's arms. The fictional superhero was created by writer Stan Lee in the early 1960s. It has recently become popular again through a series of movies made about him. In them he is acted by superstar Tobey Maguire, who acted with Kirsten Dunst and James Franco. Options: A By showing he had the same interest as the boy. B By bringing the boy's mother to his side. C By dressing up as a superhero. D By making friends with him. Answer: C By dressing up as a superhero. Question:
A:
How did the fireman succeed in saving the boy?