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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.
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Article: Perhaps the most astonishing theory to come out of kinetics,the study of body movement,was suggested by Professor Ray Birdwhistell.He believes that physical appearance Is often culturally programmed.In other words,we learn our looks;we are not born with them. A baby generally unformed facial features.A baby,according to Birdwhistell,learns where to set the eyebrows by looking at those around family and friends.This helps explain why the people of some regions of the United States look so much lilke.New Englanders or Southerners have certain common facial characteristics that cannot be explained by genetics .The exact shape of the mouth is not set at birth,it is learned later.In fact,the final mouth shape is not formed until well after permanent teeth are set.For many,this can be well into adolescence .A husband and wife together for a long time often come to look somewhat alike.We learn our looks from those around us. This is perhaps why in a single country there are areas where people smile more than those in other areas.In the United States,for example,the South is the part of the country where the people smile most frequently.In New England they smile less,and in the western part of New York State still less.Many Southerners find cities such as New York cold and unfriendly,partly because people on Madison Avenue smile less than people on Peach Tree Street jn Atlanta,Georgia.People in densely populated urban areas also tend to smile and greet each other in public less than people in rural areas and small towns.
Answer: body movement
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The passage might be taken out of a book dealing with _

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Article: Any mistake made in the printing of a stamp raises its value to stamp collectors.A mistake on a two-penny stamp has made it worth a million and a half times its face value. Do you think it impossible? Well,it is true.And this is how it happened. The mistake was made more than a hundred years ago in the former British colony of Mauritius,a small island in the Indian Ocean. In l847 all order for stamps was sent to London Mauritius was about to become the fourth country in the world to put out stamps. Before the order was filled and the stamps arrived from England,a big dance was planned by the commander-in-chief of all the armed forces on the island.The dance would be held in his house and letters of invitation would be sent to all the important people in Mauritius.Stamps were badly needed to post the letters.Therefore,an islander,who was a good printer,was told to copy the pattern of the stamps.He carelessly put the words "Post Office" instead of "Post Paid", two words seen on stamps at that time,on the several hundred that he printed. Today, there are only twenty-six of these misprinted stamps left-fourteen One-penny Reds and twelve Two-penny Blues, Because there are so few Two-penny Blues and because of their age, collectors have paid as much as$16,800 for one of them.
Answer: a former colony of Great Britain
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Mauritius is the name of _

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Article: At Dulles High school in Sugar Land, Texas, the roster for Advanced Chinese begins with Jason Chao and ends with Kathy Zhang. In between comes an unexpected name: Elizabeth Hoffman. Hoffman, now a 12thgrader, began learning Chinese in the eighth grade, has spent a summer studying in Nanjing and plans to perfect her Mandarin next fall. When asked by her peers---why she is learning Chinese, she responds with a question: "why aren't you?" As China rushes toward superpower status, America's schools and government officials are responding to Hoffman's opinion. Earlier this year Eush Holt of New Jersey introduced legialation calling for increased money of programs for less commonly taught languages, "For reasons of economics, culture and security, we should have much better facilities with Chinese languages and dialects," he said. The State Department has pointed out Chinese is becoming a "critical language", but the most recent data show that only 24,000 students in Grade 7 to Grade 12 study Chinese. Still, the number is growing. In Chicago public schools, enrollment in Chinese classes has skyrocked from 5000 students in 2005 to nearly 35,000 students this year. In the Santa Clara County, California, enrollment has quadrupled during the same period. In 2007, when the College Board first introduces advanced-placement language exams in Chinese and Italian, 2,400 high school plan to offer AP Chinese---10 times the number of students that plan to offer AP Italian. Much of the interest can be explained by China's increasing competiviveness. "People are always trying to judge what languages are going to be useful for the future," says Marty Abbot, the director of education at the National Council on the Teaching of Foreign Languages, Stephanie Wong, a student At Monta Vista High School in Cupertino, California, chose Chinese so that she could speak with her grandfather. Wong also predicted that Chinese will be important if she becomes a doctor. 80 percent of people in her hometown are Asians.
Answer: many students in the world choose to learn Chinese
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According to the text, Chinese is becoming a "critical language" because _ .