In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

[Q]: Article: The Goldman Environmental Foundation recently recognized a group of individuals for their efforts to protect the environment. Each year, the American-based group honors environmental activists from six different areas. The first three winners of the 2012 Goldman Prize are from Kenya, the Philippines and China. The Goldman Environmental Foundation says Ikal Angelei is a hero to those who live around Lake Turkana. The Kenyan woman received the award because of her efforts to stop a dam project on a river in Ethiopia. Critics say the dam will harm the lake and restrict the flow of water for people who live nearby. The Philippine island of Mindoro is home to those who depend on the area's natural resources for food and jobs. Edwin Gariguez became concerned when a European company announced plans to mine for nickel on the island. The Roman Catholic minister said waste materials from the mining project would pollute the water and destroy the forests. So he started a campaign to stop the project. In China, Ma June is working with businesses to clean up their pollution. He formed a group that collects information about pollution, and publishes it on the Internet. The Goldman Prize was also awarded to activists from Argentina, Russia and the United States. Sofia Gatica of Argentina is from a town where farmers commonly use pesticide products to protect soybean crops from insects. The town also has a high rate of cancer. Miz Gatica believed that pesticide use was responsible for the death of her baby. She worked with other mothers to get government officials to ban the use of chemicals near populated areas. Evgenia Chirikova objects to the plans to build a road through a protected forest just outside Moscow. She has demanded that Russian officials redirect the road away from the forest. She and her followers have been arrested for their activities. However, their campaign has gained widespread public support. The sixth winner is American Caroline Cannon -- a community leader in Point Hope, Alaska. Miz Cannon is fighting to keep Arctic waters safe from oil and gas exploration.
Answer: Ma June is trying to stop oil and gas exploration
[A]: We can know from the passage that _ .

[Q]: Article: It was a very foggy day in London. The fog was so thick that it was impossible to see more than a foot or so. Buses, cars and taxis were not able to run and were standing by the side of the road. People were trying to find their way about on foot but were losing their way in the fog. Mr. Smith had a very important meeting at the House of Commons and had to get there but no one could take him. He tried to walk there but found he was quite lost. Suddenly he bumped into a stranger. The stranger asked if he could help him. Mr. Smith said he wanted to get to the Houses of Parliament. The stranger told him he would take him there. Mr. Smith thanked him and they started to walk there. The fog was getting thicker every minute but the stranger had no difficulty in finding the way. He went along one street, turned down another, crossed a square and at last after about half an hour's walk they arrived at the Houses of Parliament. Mr. Smith couldn't understand how the stranger found his way. "It is wonderful," he said. "How do you find the way in the fog?" "It is no trouble at all to me," said the stranger, "I am blind."
Answer: meet by chance
[A]: According to the passage, we can infer that "bump into" means _ .

[Q]: Article: Think of some of your favorite singers. When you listen, they can make you happy or sad, peaceful or angry. They can make you relax or want to get up and dance. Gifted singers have the power to affect us in many ways -- emotionally, physically and mentally. But becoming a great singer isn't as easy as listening to one. It takes practice, devotion and strong lungs! Just ask the well-known American opera star Carol Vaness. At the Metropolitan Opera in prefix = st1 /New York Citywhere she often sings, Carol's voice must be loud enough to be heard by four thousand people. It must reach every person in the theater, without a microphone, even when she's singing softly. The reason Carol can project her voice that far is the way she breathes. "When you breathe, it's like a swimmer taking a deep breath before going underwater," Carol explains. "You have to take a lot of air into your lungs." According to Carol, the main difference between pop singing and opera is "how you breathe, how much air you take in, and how you control it coming out. Regular singing is more like speaking, and it's a lot softer. When I sing for children, they're often surprised by how the vibrations strike their ears -- like waves on a beach, " Carol says. "In opera, the air doesn't just go out of your mouth -- it vibrates in your chest, the way a guitar vibrates when it's played. " Ever since she started piano lessons at the age of ten, Carol has loved music. As she got older, she decided to become a music teacher. When she went to college, she took singing lessons as part of her studies. Her voice teacher discovered that nineteen-year-old Carol had an exceptionally beautiful soprano voice - the highest singing voice for women. Carol decided to make opera her goal, not only because she loved to sing but also because she loved the drama. Opera is a play in which the characters sing the words instead of speaking them. The stories of opera can be tragic or comical. They can be personal stories about two people falling in love or grand stories about kings and queens who lived long ago. As the characters in an opera sing, the emotions expressed by words and music come to life. Today, Carol performs throughout the United Statesand Europe and she has song for almost twenty years. But she has never forgotten where she started singing in the first palace. "Put your heart into your singing and enjoy it," says Carol, "because singing is a great joy. That's why I sing. In fact, that's why everybody sings. "
Answer: can seat 4,000 people
[A]:
According to the passage, the Metropolitan Opera in New York City _ .