Read the following article and select the best answer. Article: WASHINGTON -- President Obama and his wife, Michelle, handed out Halloween treats to area children and military families at the White House Sunday evening. Local students between 6 and 14 years old, along with children from military families, were invited to celebrate Halloween on the North Lawn. The president and first lady, along with Mrs.Obama's mother, Marian Robinson, spent about 30 minutes passing out goodie bags.Obama wished each child a happy Halloween as he distributed the treats, pausing occasionally for hugs or to comment on costumes. Later, the military families continued the celebration inside the White House. The first couple joked to assembled reporters about children walking the long driveway in order to work off the snacks."This is the Let's Move method of trick-or-treating ," Obama said, referring to Mrs.Obama's campaign to combat childhood obesity . The goodie bags contained a box of White House M&Ms, a cookie made by pastry chef Bill Yosses, and dried fruit. As they made their way across the lawn, the children meet a vast range of costumed characters ranging from a spooky Frankenstein (,<<>> ) to the Scarecrow from "The Wizard of Oz." Music from a jazz band dressed in pirate gear rang out across the White House grounds. Multicolored pumpkins and gourds lined the driveway -- individually, in gravity-defying stacks and as part of a large mound over 5 feet tall.Pumpkin-headed scarecrows made of cornstalks loomed over the path with menacingly raised arms.Under the White House portico, a mobile resembling bats flying through clouds fluttered around a lantern. Some of the local trick-or-treaters were students at Bancroft Elementary, which helps tend the first lady's White House garden, and Tubman Elementary, which has a relationship with the White House chefs. After trick-or-treating ended, the Obamas stood near the front door, welcoming the military families inside, helping children climb the short flight of steps and thanking parents for their service. Question: The passage is mainly developed by _ . - analyzing causes - making comparisons - examining differences - following the time order
following the time order

Read the following article and select the best answer. Article: BEIJING, Oct.14(Xinhua)----A total of 120 middle school students from 35 countries will attend the final of an international China language contest, to be held in southwest China's Chongqing Municipality from Oct.16 to 30. The candidates, aged from 15 to 20,must be from foreign countries and not native Chinese speakers, said a statement issued by the Chinese language Council (CLC),the contest's organizer, here Thursday. All of the candidates have passed the preliminary contests held in their own countries. According to the organizer, the competition will have a top prize, five second prizes,10 third prizes and a dozen prizes for special talents.The organizer will also launch an online vote for "the most liked candidate." It was the third year China has held the contest. "The competition not only tests the proficiency of Chinese language but also the candidates capability to communicate across different cultures."the statement said. All the candidates in the final will receive scholarships from the Chinese government.said Hu Hangyu, an official with the Education Bureau of the Chongqing Municipality, jointly organizing the contest. They will also meet local Chinese students and live with Chinese families, Hu said. "The competition is to meet the increasing demand for Chinese learning by foreign youngsters."said Xu Lin.the CLC director. The CLC has also hosted similar contest for foreign college students since 2002. China has been working to promote Chinese language learning abroad over the past few years.According to the CLC, the country had 282 Confucius Institutes and 272 "Confucius Classrooms" in 88 countries and regions as of 2009 since the first one was established in 2004. Question: The text is intended to _ . - show the popularity of Chinese language learning in the world - introduce an international Chinese language learning test system - make readers aware of the importance of Chinese language learning - report an international Chinese language contest to be held
report an international Chinese language contest to be held

Q: Read the following article and select the best answer. Article: Dogs can know the meaning of a human perspective, say researchers. Dogs are more capable of understanding situations from a human's point of view than has previously been recognized, according to researchers. They found dogs were four times more likely to steal food they had been forbidden, when lights were turned off so humans in the room could not see. This suggested the dogs were able to alter their behavior when they knew their owners' perspective had changed. The study, published in Animal Cognition, conducted tests on eighty-four dogs. The experiments had been trying to find whether dogs could make their behavior suitable to react to the changed circumstances of their human owners. It wanted to see if dogs had a "flexible understanding" that could show they understood the viewpoint of a human. It found that when the lights were turned off, dogs in a room with their human owners were much more likely to disobey and steal forbidden food. The study says it is "unlikely that the dogs simply forgot that the human was in the room" when there was no light. Instead it seems as though the dogs were able to differentiate between when the human was unable or able to see them. Juliane Kaminski carried out the research into how dogs are influenced by human circumstances. Dr Juliane Kaminski, from the University of Portsmouth's psychology department, said the study was "incredible because it implies dogs understand the human can't see them, meaning they might understand the human perspective". Previous studies have suggested that although humans might think that they can recognize different expressions on their dogs' faces, this is often inaccurate and a projection of human emotions. "Humans constantly attribute certain qualities and emotions to other living things. We know that our own dog is clever or sensitive, but that's us thinking, not them," said Dr Kaminski. "These results suggest humans might be right, where dogs are concerned, but we still can't be completely sure if the results mean dogs have a truly... Question: Where can we probably read this kind of articles? - Textbooks. - Advertisements. - Instructions. - Magazines.
A: Magazines.

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Read the following article and select the best answer. Article: Taking the train is a wonderful way to see America. In the 19th century, train routes appeared from coast to coast, carrying both people and goods Today, a long-distance Amtrak train trip is a different way to experience the United States. The long-distance Amtrak trains have lots of room. Coach seats have lots of leg room and wide aisles ,sightseeing lounges have large windows, and sleeping areas can provide a good night's rest. On a train trip, there's time to talk, play cards or board games, and read to one another. On a car trip, parents have to drive while on a train, parents can sit back and watch the scenery go by. Unlike an airplane, traveling by train is not the quickest way to arrive at your destination; the train is the destination in itself. Amtrak manages long-distance trains that run through the United States. Routes have different names, such as Empire Builder, California Zephyr, Sunset Limited and Southwest Chief. The long-distance trains have double-decker cars(Superliners), sightseeing lounges, and a real dining car. On shorter trains, such as from New York to Washington. DC, the cars are single level and only have a snack bar. In the Superliner trains, the sightseeing lounge is lined with windows on the second level while on the lower level a snack bar and tables can be found. In the evening, videos are shown in the lounge car--either entertaining movies or documentaries. Tip: As delays are common on Amtrak trains, always call the station before you go there. Otherwise, . Question: What's the advantage of seeing America by train? - There are more services on the train than any other - Traveling by train is the quickest way to reach your destination. - Traveling by train gives people more time to see and do things. - The trains like Amtrak allow people to enjoy the journey cheaply.
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Traveling by train gives people more time to see and do things.