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I'm taking a test and have to guess the right answer to the question after the article. Article: Have you ever wondered why birds sing? Maybe you thought that they were just happy.After all,you probably sing or whistle when you are happy. Some scientists believe that birds do sing some of the time just because they are happy.However,they sing most of the time for a very different reason.Their singing is actually a warning to other birds to stay out of their territory Do you know what a "territory" is? A territory is an area that an animal,usually the male,claims as its own.Only he and his family are welcome there.No other families 0f the same species are welcome.Your yard and house are your territory where only your family and friends are welcome.If a stranger should enter your territory and threaten you,you might shout.Probably this would be enough to frighten him away. If so,you have actually scared the stranger away without having to fight him.A bird does the same thing. But he expects an outsider almost any time,especially at nesting season.So he is screaming all the time,whether he can see an outsider or not This screaming is what we call a bird's song,and it is usually enough to keep an outsider away. Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs. You can see that birds have a language all their own.Most of it has to do with attracting mates and setting up territories. Question: Why do birds keep on singing at nesting season? Options: A: Because they want to invite more friends B: Because their singing helps get rid of their fears. C: Because they want to find outsiders around. D: Because their singing helps frighten outsiders away.
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D

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I'm taking a test and have to guess the right answer to the question after the article. Article: A baby born in India has been declared the world's seven billionth person by child rights group Plan International. Baby Nargis was born at 07:25 local time (01:55GMT) in Mall village in India's Uttar Pradesh state. Plan International says Nargis has been chosen symbolically as it is not possible to know where exactly the seven billionth baby is born. In addition to baby Nargis in India, Bangladesh, the Philippines and Cambodia have all identified seven billionth babies. The United Nations estimated that on Monday 31 October, the world's population would reach seven billion. Populations are growing faster than economies in many poor countries in Africa and some in Asia. At the same time, low birth rates in Japan and many European nations have raised concerns about labor shortages. Population experts at the United Nations estimated that the world reached six billion in October 1999. They predict nine billion by 2050 and ten billion by the end of the century. China's population of one and a third billion is currently the world's largest. India is second at 1.2 billion. But India is expected to pass China and reach one and a half billion people around 2025. India will also have one of the world's youngest populations. Economists say this is a chance for a so-called demographic dividend. India could gain from the skills of young people in a growing economy at a time when other countries have aging populations. But economists say current rates of growth, although high, may not create enough jobs. Also, the public education system is failing to meet demand and schooling is often of poor quality. Another concern is health care. Nearly half of India's children under the age of five are malnourished . Michal Rutkowski, the director of human development in South Asia at the World Bank, says reaching seven billion people in the world is a good time for a call to action. He says, "I think the bottom line of the story is that the public policy needs to become really, really serious about sex equality and about access to... Question: Which of the following public policies does Michal Rutkowski call on? Options: A: To encourage late marriage. B: To reduce world's population. C: To gain economic equality. D: To improve health and education.
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D

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I'm taking a test and have to guess the right answer to the question after the article. Article: When the musical sound rings you, you immediately reach for your pocket ready to have a chat. But although you probably use it all the time, have you ever thought about the manners related to talking on the phone? If you haven't, here are some tips to guide you. *Always give the person you are calling plenty of time to get to the phone before you hang up. If the person who answers is not the one you want, give your name and ask if you may speak to the person you want. *Think about the time you call people. Try not to call too early in the morning (before about 9:00) or too late at night (after about 9:30). Also try not to call at mealtimes. *If you go by plane to visit your relatives at Christmas, remember to follow airline instructions. Cell phone must be turned off as soon as the plane doors are closed and remain so until the doors open again on arrival. *When you're face to face with someone, do not talk on the phone. It is rude to be on the phone when a waiter is trying to take your order in a restaurant, or when you are returning the shoes you have just been trying on in a shop. Finish any face-to-face business before taking a call. Continuing to use the phone while nodding to the person in front of you is quite impolite. *When in a restaurant with your friends, keep phone conversations short. Make a call only if it is important. Practice speaking in a low voice. If no one turns to your way, _ . *If you go to a theatre, a concert or a cinema, consider the other people around you. Check that your phone is "off" before you enter. If you are expecting a very important call, put your phone on "vibrate" and run for the exit as soon as you feel it. If you forget both "off" and "vibrate" and your phone rings, don't answer it, turn it off straight away. Question: From the tips given above, we can decide the writer must agree with the opinion that _ . Options: A: like the saying "clothes make a man", nowadays cell phones make a man B: as the old saying goes, money talks, nowadays cell phones talk C: the way we use the cell phones tells what we are like D: we are what cell phones we use
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C