Read the following article and select the best answer. Article: It's a time when school,homework,active social lives and pare-time jobs keep teenagers busy from early in the morning until late at night.They are likely to try to make up for a lack of sleep by "sleeping in" on the weekends.Unfortunately,this causes irregular sleep and actually makes the problem worse. Most teenagers are not able to fall asleep until late at night.Since many teens aren't sleepy until around 11 pm.but need to be at school by 7:30 or 8:00 am .They cannot get enough sleep .During puberty ,the biological clock in the brain naturally re-sets to a later time ,and this causes teens to fall asleep later.Then ,when it's time to get up ,a teen's body clock is likely to still be producing the night-time hormones .This makes it hard for them to feel active and energetic in the morning. A growing body of research suggests that starting high school later improves attendance,achievements and grades.A few years ago in an important study ,test scores on the SAT college entrance exams in Edina,Minnesota jumped more than 100 points on average,when the morning school bell rang an hour later.Unfortunately,most schools are not set up to start later and fail to satisfy teen's sleep needs. Question: The text helps us to know more about teenagers' _ . - daytime activities - sleeping habits - mental problems - studying methods
sleeping habits

(Question)
Read the following article and select the best answer. Article: Proudly reading my words, I glanced around the room, only to find my classmates bearing big smiles on their faces and tears in their eyes. Confused, I glanced toward my stonefaced teacher. Having no choice, I slowly raised the report I had read carefully, hoping to hide myself. "What could be causing everyone to act this way?" Quickly, I flashed back to the day Miss Lancelot gave me the task. This was the first real task I received in my new school. It seemed simple: go on the Internet and find information about a man named George Washington. Since my idea of history came from an ancient teacher in my home country, I had never heard of that name before. As I searched the name of this fellow, it became evident that there were two people bearing the same name who looked completely different! One invented hundreds of uses for peanuts, while the other led some sort of army across America. I stared at the screen, wondering which one my teacher meant. I called my grandfather for a golden piece of advice: flip a coin. Heads--the commander, and tails--the peanuts guy. Ah! Tails,my report would be about the great man who invented peanut butter, George Washington Carver. Weeks later, standing before this unfriendly class, I was totally lost. Oh well, I lowered the paper and sat down at my desk, burning to find out what I had done wrong. As a classmate began his report, it all became clear,"My report is on George Washington, the man who started the American Revolution." The whole world became quiet! How could I know that she meant that George Washington? Obviously, my grade was awful. Heartbroken but fearless, I decided to turn this around. I talked to Miss Lancelot, but she insisted: No redos; no new grade. I felt that the punishment was not fair, and I believed I deserved a second chance. Consequently, I threw myself heartily into my work for the rest of the school year. Ten months later, that chance unfolded as I found myself sitting in the headmaster's office with my grandfather, now having an entirely different... Question: In the end, the author turned things around _ . - by redoing his task - through his own efforts - with the help of his grandfather - under the guidance of his headmaster
(Answer)
through his own efforts

Ques: Read the following article and select the best answer. Article: If a noisy neighbor is blasting music at all hours of the day and night, drowning out your phone conversations and interrupting your sleep, you can call the police. But what is a whale to do? Natural noise from waves, wind, rain and even earthquakes is common in oceans. Unfortunately, man-made noise from oil and gas drilling, sonar, and ships is also present. Low frequency noise has doubled off the California coast every decade since the nineteen sixties. The main reasons are ships' propellers . They not only generate continuous low frequency sound, some propellers cavitate , which means they create air bubbles that collapse, creating loud popping sounds. Whales use low frequency calls to communicate across thousands of miles of ocean. They are threatened by noise pollution because it can prevent them from contacting each other and from locating their foods. Endangered humpback and right whales, which use fibrous baleen to strain food from the water, are the most at risk. Scientists studying right whales off Canada's east coast have discovered that whales are sending louder calls through the water to make themselves heard. Because they invest more energy in making calls, they have less energy available for finding food and mating. Other scientists measuring whale calls against background noise pollution have discovered that right whales have lost about eighty percent of their normal communication area. This could seriously affect survival of this already threatened species. Scientists don't have badges and guns, but they are trying to correct the noise pollution problem. By tracking ships and marine mammals and understanding how noise travels, they are creating sound maps. They hope to get shipping lanes moved so that the noise pollution ships create will not overlap with areas most important to the whales. Question: The following statements are true EXCEPT _ . - You can call the police if you are disturbed by a noise neighbor - Low frequency noise has doubled off the Canadian coast every decade since 1960s. - Noise pollution can prevent whales from contacting each other and from locating prey. - Endangered humpback and right whales are the most at risk.
Ans: Low frequency noise has doubled off the Canadian coast every decade since 1960s.

Question: Read the following article and select the best answer. Article: Life is filled with challenges. As we get older, we come to realize that those challenges are the very things that shape us and make us who we are. It is the same with the challenges that come with friendship. When we are faced with a challenge, we usually have two choices. We can try to beat it off, or we can decide that the thing presenting the challenge isn't worth the trouble and call it quits. Although there are certainly times when calling it quits is the right thing to do, in most cases all that is needed is commitment and communication. When we are committed to something, it means that no matter how painful or how uncomfortable something is, we will always choose to face it through instead of running away from it. Communication is making a space for discussion and talking about how you feel as opposed to just saying what the other person did wrong. If you can say to a friend, "I got my feelings hurt", rather than "You hurt my feelings", you are going to be able to solve the problem much faster. In dealing with many challenges that friendship will bring to you, try to see them for what they are: small hurdles you need to jump or get through on your way through life. Nothing is so big that it is impossible to get over, and hurt only serves to make us stronger. It is all part of growing up, it happens to everyone, and some day you will look back on all of this and say, "Hard as it was, it made me who I am today. And that is a good thing." Question: The whole passage is centered on the relationship between _ . - friendship and challenges - commitment and friendship - friendship and growth - challenges and chances
Answer:
friendship and challenges