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: Cats are creatures of habit. They like to go to sleep about the same time every day and for a certain length of time. They seem to have a natural clock inside them that tells them when to sleep. Cats increase their regular sleep with occasional cat naps . Some experts feel that humans could also benefit from this habit. Cat naps help to build up energy in the body. They are also a good way to get rid of trouble! Since cats have the same moods as humans, some experts believe that people can improve their moods. People might become happier. A number of famous people have copied cats by taking cat naps during the day. The naps would usually last from 15 to 30 minutes. Winston Churchill took cat naps. So did Presidents Harry Truman, John F. Kennedy, and Lyndon B. Johnson. These famous men were known for their energy. They were also able to work long hours, often into the night. Napping was their secret.
Answer: take naps when they are not happy
[A]: From this selection we know that cats _ .

[Q]: Article: On August 5 at 10:31 p.m. PST, a rover named Curiosity touched down safely on the surface of Mars, and I was lucky enough to have a front-row seat. My name is Clara, and when I was in Grade 6, I won the essay contest NASA held to name its next Mars rover. The essay I wrote was not even 250 words long, but somehow it was enough to change my life. I still remember that cold December day, sitting in a science class. I'd finished a worksheet early and decided to get a Time for Kids magazine off Mrs. Estevez's bookshelf. It was the 2008 Invention Issue, but that wasn't the only thing that caught my eye. In the magazine, there was an article about a girl who named the Mars Exploration Rovers, Spirit and Opportunity. The article also talked about the essay contest NASA was holding to name its next Mars rover. Before I even knew anything else about it, a single word flooded my 11-year-old mind: Curiosity. I couldn't wait for the bell to ring so I could get started on my essay. That afternoon, I raced home from the bus stop, sat down at the computer and typed until my fingers ached. It turned out that I was just in time. A few days later, and the contest would have closed. Five months later, shortly after I had turned 12, I was watching a National Geographic special on mammoths when the phone rang. My mom answered, and immediately, a wide smile spread across her face. When she told me that I had won, I was happier than I could ever remember being, I screamed and ran up and down the stairs and all around the house. I completely forgot about the mammoths and did not even remember to turn off the TV until it was really late. Curiosity is such an important part of who I am. I have always been fascinated by the stars, the planets, the sky and the universe. I remember as a little girl, my grandfather and I would sit together in the backyard for hours. He'd tell me stories and point out the stars. My grandfather lived in China, thousands of miles away from my home in Kansas. I loved the stars because they kept us together even when we were apart. They were always there, yet there was so much I didn't know about them. That's what I love so much about space. No matter how much we learn, it will always possess some mystery. In the past, space exploration may have been a competition to see who got somewhere first or the fastest. But now, it is one of the few things that bring people together. Science is a language that needs no translation. It doesn't matter where you're from or what you look like - you just have to have a thirst for knowledge and a passion for learning in order to succeed. People often ask me why we go to faraway places like Mars. Why do we explore? My answer to that is simple: because we can; because we're curious; because we as human beings do not just stay holed up in one place. We are constantly wondering and trying to find out what's over the hill and beyond the horizon. The curiosity rover is more than just a robot. It is more than just a titanium body and aluminum wheels. Curiosity represents the hard work, passion, love and commitment of thousands of people from all over the world who were brought together by science. Science is so awesome. It is breathtaking and mind-blowing; and sometimes, it's just a little bit crazy. The discoveries we make about our world are incredibly humbling. They move us forward and have the potential to benefit all of mankind. This December it will be four years of my life that have been tied to Curiosity in some way. I've met so many amazing people through this experience, from scientists to engineers to administrators to volunteers. Their devotion and enthusiasm inspire me greatly. My journey with Curiosity and the MSL mission team has shaped the person that I am today, as well as the person I would one day like to become. I am deeply grateful to everyone who made it possible for me to have this amazing adventure. And to you, I hope your curiosity takes you far.
Answer: describing a scene
[A]: The method the writer uses to begin the passage is _ .

[Q]: Article: Teens don't understand the big fuss .As the first generation to grow up in a wired world,they hardly know a time when computers weren't around,and they eagerly catch the chance to spend hours online,chatting with friends.So what? But researchers nationwide are increasingly worried that teens are becoming isolated ,less skillful at person-to-person relationships,and perhaps numb to the cheatings that are so much a part of the e-mail world."And a teen's sense of self and values may be changed in a world where personal connections can be limitless,"said Sherry Turkle. Another researcher,Robert Kraut,said he's worried about the "opportunity costs" of so much online time for youths.He found that teens who used computers,even just a few hours a week,showed increased signs of loneliness and social isolation."Chatting online may be better than watching television,but it's worse than hanging out with real friends,"he said. Today's teens,however,don't see anything strange in the fact that the computer takes up a central place in their social lives."School is busy and full of pressure.There's almost no time to just hang out,"said Parker Rice,17."Talking online is just catch-up time." Teens say they feel good about what they say online or taking the time to think about a reply.Some teens admit that asking someone for a date,or breaking up,can be easier in message form,though they don't want to do so.But they insist there's no harm.
Answer: teens may develop a different sense of values
[A]:
The researchers argue that _ .