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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Question: Article: Parents are often amazed at how fast their child grows and develops. New research has determined that the ability to quantify may develop much sooner than most parents realize. Kristy vanMarle, professor of the University of Missouri, has determined that contrary to what previous studies have shown, infants are able to quantify substances --like sand or water--as early as 10 months. As long as the difference between the two substances is large enough, infants will choose the larger amount, especially when it comes to food. With the assistance of her team researchers, vanMarle tested the quantifying skills of babies by presenting them with two cups: one containing a small amount of food, and one containing a larger amount. Consistently, the babies chose the larger amount. "Several studies throughout the last 15 years have shown that infants are very good at telling how many objects they see; however, infants don't seem to count things like water or sand," vanMarle said. "What we're saying is that they can quantify substances; The infants can see how much food goes into each cup and compare that in their memories. They decide which amount is larger, and they almost always select the larger one." This information further refutes the long-held idea that babies "know nothing of the world," vanMarle said. "Since psychologists have begun studying infants with sensitive measures, we've discovered a lot of early abilities. I think for parents, it should be exciting to know that there's somebody there that has some fundamental and basic knowledge of the world, and that knowledge is guiding their development," vanMarle said. In the future, vanMarle says this kind of study could be linked to a child's progress in math-related skills, although programs marketed to increase those abilities, such as "Baby Einstein," still have mixed reviews when it comes to academic study.
Answer: through their natural abilities

Answer: Babies choose the larger amount of food _ .

Question: Article: For a commuter rushing to catch a train, a minute can mean the difference between dinner with the family and leftovers in the microwave. What most passengers don't realize is that their minute is already there. Every commuter train that departs from New York City -- about 900 a day -- leaves a minute later than scheduled. If the timetable says 8:14, the train will actually leave at 8:15. In other words, if you think you have only a minute to get that train -- well, relax. You have two. The courtesy minute, in place for decades and published only in private timetables for employees, is meant as a grace period for those who need the extra time to get off the platform and onto the train. "If everyone knows they get an extra minute, they're going to waste time doing unimportant things," explained Marjorie Anders, a spokeswoman for the Metro-North Railroad. Told of this article, Ms. Anders laughed. " _ !" she said. Entirely hidden from the riding public, the secret minute is an odd departure from the railroad culture of down-to-the-second accuracy. The railroad industry helped invent the concept of standard time, and time zones were established in the United States in the 1880s, 35 years before they were written into law. And most commuters know their train by the precise minute it departs. The trains quickly make up the minute: at all other stops, the public timetable prevails. The phantom minute does not exist at commuter railroads in Chicago, Los Angeles, Philadelphia, or San Francisco. But in New York, the secret minute dates back decades. "That's been done forever, from my knowledge," said Jack Swanberg, 70, an unofficial historian of Metro-North. "I was the trainmaster starting in 1970 and I'm sure it's been the case since 1870 for all I know."
Answer: prevent the passengers' idleness

Answer: The courtesy minute was hidden from the public to _ .

Question: Article: BEIJING -- China's education authority will tighten the widely criticized policy of "extra credits" for the national college entrance examination to ensure a fairer chance for all exam-takers. Under the policy, high school students who win awards in national Olympic competitionscould get ''extra credits', up to 20 points for the national college entrance exam. Students with talentin sports and students who are from ethnic groups can also benefit from this policy. The extra creditshave increased these students' chances of being admitted by famous universities. Some parents werefound to have helped their children fabricate award experiences or falsify qualifications to getextra credits. "It has harmed education equality," the ministry said. Xiong Bingqi, vice-chief of the 21st Century Education Research Institute, said the policy isdesigned to help students who have special talents but may be weak in academic performance tohave a chance to receive higher education. It will still be needed but it is time to make the rulesfairer," he said. The ministry said it will reduce the range of competitions whose winners can get extra credits,and limit the winners, privileges. The new policy will apply to students who begin high school in 2011, it said. Chen Lei, a mother of a 10-year-old girl, said she welcomed the ministry's policy adjustmentas she does not want her daughter to become an Olympic competition _ . But not all the Chinese parents welcomed the new policy. "It is like a thunderbolt for me. My 13-year-old son has spent so much time studying Olympic math, and participated in so manytechnological competitions during vacations. It is useless now," said Dong Wen, a 43-year-oldmother. A student said, "Many students have changed the current study plan, and they can abandon thecompetition. I will be interested in learning the courses which can improve my abilities." Yuan Guiren, minister of education, told China Daily that the reform is an attempt to consider the overall quality of an applicant. "But the country will not stop the national college entrance examination as it is still the most objective way to evaluate talent in China," he said.
Answer: he extra credits have reduced students' chances of being admitted by famous colleges

Answer:
It can be inferred from the passage that _ .