Problem: Given the question: Write a multi-choice question for the following article: Article: You may have never heard of Lanthanum, Cerium or Neodymium, but these elements and others known as "rare earth" play a major role in modern technology. They can actually be found in many places on the earth, but not in quantities that can be mined. Only a few countries -- China, America, India, Australia, Brazil and Malaysia have any that can be mined enough to be traded. Even though some of these elements such as Cerium are as abundant as Copper, they are not found in concentrated amounts on the earth's surface. They are often mixed together with other metals, which makes extraction of these elements an expensive and an environmentally messy process. It was due to this reason that the term "rare earth" was invented. Rare earth metals are used widely in our life. Rechargeable car batteries, computers, iPhones, DVD players, computer monitors, televisions, lighting, lasers, glass polishing, and superconductors all use quantities of rare earth metals. Also, with the advancement in "green" technology like solar panels, these shiny materials are becoming more important than ever. An average electric car uses 10 pounds of Lanthanum for its rechargeable battery! America has large deposits of rare earths and has one of the first mines. It was opened in Southern California in 1940. The element "Europium" was the first metal to be separated in quantity for use in color televisions. However, in the 1980's and 1990's, as China started producing these elements in Inner Mongolia, the mines in America and elsewhere could not keep pace. The mine in Mountain Pass, California also failed environmental regulations and shut down in 2002. Now, recognizing the importance of having more than one supplier of this important resource, other rare earth owning countries like India and Australia are either dusting off their rare earth mines or speeding up their production. It is believed that the debate over rare earths will become louder in the coming months and years.
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Question: It can be inferred from the text that rare earths _ .Options:A are now in great demandB can now be used in few fieldsC are harmful to the environmentD will soon be replaced by other metalsAnswer:A

Problem: Given the question: Write a multi-choice question for the following article: Article: A father in Wuhan, nicknamed "Eagle Dad" for his controversial parenting style, has dismissed critics' claims that he pushes his 4-year-old son too hard. Police officer Wang Shaoyan came under the spotlight this month after his child took part in an 18-kilometer race in the Hubei provincial capital. Some parents attacked his methods of extreme physical training, while others reacted strongly to his admission that he regularly exposes the youngster to cold showers. "I just want my son to reach his full potential," Wang said, adding that 4-year-old son not only runs 3 km every day he also takes cold showers from time to time to strengthen his body's resistance and willpower. "He has never taken any sick leave from kindergarten," he said proudly. However, some parents find his methods too extreme. "I'm not sure a 4-year-old is prepared for such intense training," said Zhang Ruxia a woman who gave birth to two boys in October in Tianjin. "You can have good intentions to train your child at an early age but you also have to consider whether he can take it." Wang responded by saying children are too young to make decisions, and it is up to parents to lead them on the right path. "I read many materials before and the whole process is step-by-step without pushing or imposing on my son," Wang said. The father said he was not acting rashly but following a scientific way of education. He said the doubts about his methods reflect the declining standards of modern education. "Many people in Japan give their children cold showers too ,and no one is fussing about it," he said. The traditional way of education applied by most of his peers might not necessarily help bring the best out of a child he said. Wang said in addition to the physical training, he has also laid out a detailed and particular program to strengthen the intelligence of the child. "I have hired some university students to expand his knowledge in natural sciences, while playing the video for English-language teaching as well," he said.
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Question: For what reason was Wang made known to the public?Options:A He employed some college students to teach his son.B He made his kid take a long distance race.C He exposed his 4-year-old to cold showers.D He forced his youngster to run 3 km every day.Answer:B

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Question: What can be learned from the passage?Options:A Teen Ink must ask for your permission before having your work publishedB The copyrights of your writing will be shared by Teen Ink and PepsiC When you put your writing into the envelope,you shouldn't fold itD The Pepsi Company may be a sponsor of Teen Ink for this campaign.Answer:D