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: Back in old times, people had little knowledge about the universe and nature. Things we now consider to be common sense were mysteries to our ancestors. Over the years, major breakthroughs have been made in science and many phenomena have been explained. But still, there are always questions we can't yet answer, and The Guardian has listed some of them. 1. What makes us human? Just looking at your DNA won't tell you - human DNA is 99 percent _ to that of the chimpanzee and, believe it or not, 50 percent identical to a banana's! A lot of the things we once thought were unique about us - language and tool use, recognizing ourselves in the mirror and so on - have since been seen in other animals. Perhaps it's our culture that makes the difference or maybe our ability to use fire. It's also possible that our capacity for co-operation and our trading skills are what make us unique. 2. Why do we dream? Given the fact that we spend around a third of our lives sleeping, shouldn't we know everything about it? Unfortunately, scientists are still searching for a complete explanation of what happens when we sleep and why we dream. Austrian psychologist Sigmund Freud believed dreams were the expressions of wishes that we can't fulfill in our real lives. Others have wondered whether dreams are just random "noise" coming from a sleeping brain. 3. Could we someday live forever? Apart from accidents, most people die because of diseases that can be treated and aging. And since many diseases, such as diabetes and cancer, are diseases of aging, treating aging itself could be the key to extending our lives. Our knowledge of what causes us to age - and what allows some animals to live longer than others - is expanding rapidly. And though we haven't quite worked out all the details, we've worked out some pieces of the puzzles such as DNA damage and metabolism , which are all leading to the invention of drugs that can slow down the aging process. If we're lucky enough to lengthen our lives, we might even get to see the day when all of these questions are answered.
Answer: to explain what were once mysteries to our ancestors
[A]: The main point of the passage is _ .

[Q]: Article: Taylor Swift was born on December 13, 1989, in Wyomissing, Pennsylvania. Swift's family ran a farm. "I had her sitting on a small horse when she was nine months old," said Swift's mother. "If my dream had gone well, she'd be in a horse show right now." The only obvious forerunner of Swift's musical talent was her grandmother, an opera singer. That talent showed itself early: when the family went to see a Disney musical film, Swift would come out of the theater singing all the songs correctly. At the age of 11, she sang "The Star-Spangled Banner" at a Philadelphia 76ers game. The experiences during her pre-teen years encouraged the creativity to go with Swift's talent. As a child, she attended the academically competitive Wyndcroft School in Pottstown, but then switched to public schools in Wyomissing. Although it was her hometown, she didn't know any of her classmates, and she was terrified. Swift began to understand the storytelling feature of country songs, and put her feelings into songs of her own. One of her future hits, "The Outside", was written when she was only 12. "I wrote that about the scariest feeling I've ever felt: going to school, looking at those faces, and not knowing who you're gonna talk to that day," she said. "In the music, I could never feel the kind of rejection that I felt in middle school." Swift's parents quickly realized that they had someone special on their hands. They sold their farm when she was 13 and moved the family to Hendersonville, Tennessee.[:Z+xx+k.Com] Swift had the ability, above all, to put feelings into words with accuracy far beyond her years. In "Our Song" she wrote, "Our song is the slamming screen door, going out late, tapping on your window." In the summer of 2006, "Tim McGraw" came out, and almost from the beginning the 16-year-old Taylor Swift was a star.
Answer: learned singing from her grandmother
[A]: When she was in her childhood, Taylor Swift _ .

[Q]: Article: You hear the comment all the time: the U.S. economy looks good by figures, but it doesn't feel good. Why doesn't ever-greater wealth promote ever-greater happiness? It is a question that dates at least to the appearance in 1958 ofThe Wealthy Society by John Kenneth Galbraith, who died recently at 97. The Wealthy Societyis a modern classic because it helped describe a new moment in the human condition. For most of history, "hunger, sickness, and cold" threatened nearly everyone, Galbraith wrote. "Poverty was found everywhere in that world. Obviously it is not of ours." After World War II, the fear of another Great Depression gave way to an economic growth. In the 1930s unemployment had averaged 18.2 percent; in the 1950s it was 4.5 percent. To Galbraith, materialism had gone mad and would cause discontent. Through advertising, companies conditioned consumers to buy things they didn't really want or need. Because so much spending was artificial, it would be unsatisfying. Meanwhile, government spending that would make everyone better off was being cut down because people wrongly considered government only as "a necessary bad." It's often said that only the rich are getting ahead; everyone else is standing still or falling behind. Well, there are many undeserving rich -- overpaid chief managers, for instance. But over any meaningful period, most people's incomes are increasing. From 1995 to 2004, people feel "squeezed" because their rising incomes often don't satisfy their rising wants -- for bigger homes, more health care, more education, and faster Internet connections. The other great disappointment is that it has not got rid of insecurity. People regard job stability as part of their standard of living. As company unemployment increased, that part has gradually become weaker. More workers fear they've become " _ ," as Louis Uchitelle puts it in his book by the same name. Because so much previous suffering and social conflict resulted from poverty, the arrival of widespread wealth suggestedutopian possibilities. Up to a point, wealth succeeds. There is much less physical suffering than before. People are better off. Unfortunately, wealth also creates new complaints. Advanced societies need economic growth to satisfy the multiplying wants of their citizens. But the search for growth cause new anxieties and economic conflicts that disturb the social order. Wealth sets free the individual, promising that everyone can choose a unique way to self-accomplishment. But the promise is so unreasonable that it leads to many disappointments and sometimes inspires choices that have anti-social consequences, including family breakdown. Figures indicate that happiness has not risen with incomes. Should we be surprised? Not really. We've simply confirmed an old truth: the seeking of wealth does not always end with happiness.
Answer: about why happiness does not rise with wealth
[A]:
The Wealthy Society is a book _ .