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Read the article and select the best answer. Article: Parents who feel disappointed at their teenagers' failure to pay attention in class, and inability to sit quietly long enough to finish homework or plan ahead, should take _ . Their children are not being lazy or careless, according to new research. The research has found that teenagers' brains continue developing far longer into adulthood than we used to think. Teens may look like young adults but their brain structure is similar to that of much younger children. "It is not always easy for teens to pay attention in class without letting their minds wander, or to ignore distractions from their younger brothers or sisters when trying to solve a maths problem," said Dr Iroise Dumon-theil. "But it's not the fault of teenagers that they can't pay attention and are easily distracted. It's to do with the structure of their brains. Teens simply can't think as well as an adult." The research showed that the brain of a teenager works less effectively than that of an adult. "We knew that the front of the brain of teens functioned in a chaotic way but we didn' t realize it continued until the late 20s or early 30s," said Dr Sarah-Jayne Blakemore, who led the research. Chaotic thought patterns are a result of teenagers' brains containing too much grey matter -- the cell bodies and connections which carry messages within the brain. As we age, the amount of grey matter in our brain reduces. "What our research has shown is that there is simply too much going on in the brains of teens," said Blakemore. "The result is that their brain energy and resources are wasted and their decision-making process is badly influenced. Adults, on the other hand, have less grey matter. This means that the brain works far more effectively." Question: When making decisions, _ . Options: A: teens' brains continue to do much needless work B: the grey matter in young children's front brain becomes active C: people are not likely to be distracted until their late 30s D: adults are more independent than teens
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A

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Read the article and select the best answer. Article: An eight-year-old Arthur Gonzaga from Minas Gerais, Brazil has taken the Internet by a storm, as first reported by TheHuffingtonPost, with his online YouTube series videos "Arthur Gourmand". And while it would not be a far stretch of the imagination to assume an 8-year-old's cooking show would be filled with dishes like pizza and burgers, Arthur's show actually features recipes like fruit salad a la creme de passion fruit and filet mignon . The idea to record Arthur's cooking adventures on YouTube was rooted in the young chef's leukemia diagnosis in August 2013.Treatment and recovery for the cancer left the young boy in the hospital for the second half of the year and Aruthur was even forced to spend Christmas Eve in the emergency room of So Paulo's A.C. Camargo Cancer Center. That's when his family--father Renato Gonzaga and stepmother Priscila Inserra--decided that Arthur should create something positive that would distract him from his health. The videos, which are filmed in the kitchen of a friend of the family, are in Portuguese. They show Arthur walking the viewers through a step-by-step process of the entire recipe--from preparation to cooking. Occasionally, viewers can see Arthur's father serving as his son's _ , passing ingredients and following his lead. Fluent in Portuguese or not, viewers can immediately notice Arthur's optimistic and friendly personality. It is perhaps these qualities that have given the young rising Internet star almost 5,000 likes on his Facebook Fan Page. There are currently three videos on YouTube and according to his most recent Facebook post, the young boy will be taking suggestions for his next video. Fortunately, according to what Inserra told TheHuffingtonPost, Arthur is responding well to his treatments and is on his path to recovery. "The secret of life is to let it take you, to have fun and to know how to turn lemons into lemonade ," wrote her family, fittingly, on their most recent Facebook post. Hats off to Arthur, who truly serves as a shining example of how to... Question: Arthur performs his cooking show _ . Options: A: on the stage B: in his friend's kitchen C: in his own kitchen D: in the emergency room
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B

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Read the article and select the best answer. Article: A primary school in Wuhan has used new desks and chairs to prevent students from getting short sight. The desks and chairs make students have the correct posture, especially when reading and writing. Each desk has an adjustable steel bar. The bar can help students keep their eyes at least 30cm from books. Zhang Jianming is headmaster of the primary school. She said the new desks and chairs were provided by an eye care centre in the city. The school carried out a survey last September. It showed that about 7 percent of its 1,093 students said they suffered from short sight. The new desks and chairs have already improved the students' posture, but both teachers and students might need more time to get used to them. Yang Lihua is head of the Wuhan Youth Eye Care Center. She said the desks and chairs were introduced to 19 schools on a trial basis. "During our research into short sight, we noticed that the number of students with short sight was increasing. This is because parents are teaching their children to read and write at a very early age without paying enough attention to their posture," she said. Feng Junying is a doctor at Beijing Jingshan School. "I think the new desks and chairs in Wuhan will certainly be helpful," she said. "But bad reading habits at school are not the only reason for short sight. Children are using mobile phones and iPads when they are very young. This can be another reason for short sight at a young age." Question: From the passage, a good way to protect our eyesight is to _ . Options: A: buy an adjustable steel bar B: go to the Youth Eye Care Centre often C: have a correct posture when we are studying D: read less and use mobile phones and iPads less
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C