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: Do you know how to play a game called "Musical Chairs"?It is easy to play and most people enjoy it. All you need are some chairs, some people and some way of making music. You may use a piano or any other musical instrument, if someone can play it. You may use a tape recorder. You can even use a radio. Put the chairs in a row. The chairs may be put in twos, back to back. A better way is to have the chairs in one row with each chair facing in the opposite direction to the chair next to it. The game is easy. When the music starts, the players walk round the chairs. Everyone goes in the same direction, of course, they should walk in time to the music. If the music is fast they should walk quickly. If the music is slow, they should walk slowly. The person playing music cannot see the people in the game. When the music stops, the players try to sit on the chairs. If a person cannot find a chair to sit on, he drops out. Then, before the music starts again, one chair must be taken away. When the music stops again, one more player will be out.. At last, there will be two players and one chair. The one who sits on the chair when the music stops is the winner.
Answer: nine chairs
[A]: If ten people are playing musical chairs,you must begin with _ .

[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: About ten years ago, a young and very successful businessman named Josh was traveling down a Chicago neighborhood street. He was going a bit too fast in his shiny, black, 12 cylinder Jaguar XKE, which was only two months old. He was watching for kids rushing out from between parked cars and slowed down when he thought he saw something. As his car passed, no child came out, but a brick sailed out and - WHUMP! - it hit the Jaguar's shiny black side door! SCREECH ... ! ! ! ! Immediately Josh stopped the car, jumped out, seized the kid and pushed him up against a parked car. He shouted at the kid, "What was that all about and who are you? Just what the heck are you doing?!" "That's my new Jaguar, that brick you threw is gonna cost you a lot of money. Why did you throw it?" "Please, mister, please...I'm sorry! I didn't know what else to do!" begged the youngster. "I threw the brick because no one else would stop!" tears were streaming down the boy's face as he pointed around the parked car. "It's my brother, mister," he said. "He rolled off the curb and fell out of his wheelchair and I can't lift him up. " Sobbing, the boy asked the businessman, "Would you please help me get him back into his wheelchair? He's hurt and he's too heavy for me. " Moved by the words, the young businessman lifted the young man back into the wheelchair and took out his handkerchief and wiped the scrapers and cuts, checking to see that everything was going to be OK. He then watched the younger brother push him down the sidewalk toward their home. It was a long walk back to the black, shining, 12 cylinder Jaguar XKE -- a long and slow walk. Josh never did fix the side door of his Jaguar. He kept the dent to remind him not to go through life so fast that someone has to throw a brick at him to get his attention. Feel for the bricks of life coming you.
Answer: he wanted to get help from the driver
[A]:
The boy threw a brick at the businessman's car because _ .