user: I'm taking a test and have to guess the right answer to the question after the article. Article: When you have a question about something, where do you go? For many people the answer is simple as they can go online to a search engine like Google or Yahoo. But what about people in rural or underdeveloped areas who may have no way to get on the Internet?    A business and international development professor in California, Rose Shuman, found an answer for them: Question Box. Question Box is a service that provides answers---free of charge---for people who cannot search the Internet directly. The users of Questions Box might be those who might not be able to read, or simply have no access to the Internet.    Question Box began three years ago in India. People used a metal call box with a push-to-talk button to connect a live operator. Rose Schuman explained," You just need to push a big green button on the box which will connect you directly to our operators who are sitting in front of computers, and speak your language. You can ask them any sort of question you want, and they'll look it up in English or in Hindi, or whatever the main language is, and translate the answer back for you."    The service is currently offered in two villages. The latest version of the box uses mobile phone technology, and solar panels in case the electrical power fails. Rose Shuman says the aim was to make the box as easy as possible for users, "It is very efficient  . Rather than try to bring a lot of difficulties to them and expect them to spend a lot of time to learn how to use the Internet, the idea was to make a technology that even Grandma could use."    In April 2009, Question Box was introduced to Uganda. Forty community workers with mobile phones connected villagers to call center operators in Kampala. The community workers went around telling people about the service. They wore T-shirts that said "Ask me." But Internet service in Uganda proved slow and undependable. So Question Box teamed up with a local technology company to store information on a local server. That way, the researchers in Kampala could quickly search... Question: In Rose Schuman's opinion, the greatest advantage of Question Box is that  _  . Options: A: it is the most advanced in the world B: it is more convenient to carry. C: it saves much more energy D: it is much easier to use
D

I'm taking a test and have to guess the right answer to the question after the article. Article: Sixty-five million years ago, an asteroid   that crashed on Earth led to the disappearance of the largest animals that have ever walked our planet - the dinosaurs. At least, this is what some scientists believe. But that accident happened so long ago. People have come to believe that we are free of threats from asteroids and everything else from space. However, what happened on Feb 15 , 2013 was a reminder that we're just as _ as the dinosaurs once were. Two objects from space - a meteor   and an asteroid called 2012 DA14 -  visited Earth's atmosphere on the same day. The former fell in Russia, injuring 1,200 people, while the latter passed by Earth at a record-setting close distance. Scientists had been expecting the asteroid since last year, but the meteor was a surprise. NASA's telescope system only detects asteroids at least 50 meters in diameter  , which is just about the size of 2012 DA14. But the meteor was much smaller, which made it harder to spot. But what if we do spot an asteroid that is headed right for Earth? There are several possible ways in which dangerous asteroids could be made to change its orbit. Which method is best depends on several factors and most importantly  -  how much time we have to stop it. If there is enough time before the hit, we can send off a heavy spacecraft to travel alongside the asteroid. The gravity from the spacecraft would gradually change the rock's orbit. Besides that, scientists could one day use sun-powered lasers to either make asteroids disappear or change their course. If there's not enough time, we'll have to go after the asteroid with a spacecraft and change its orbit with a crash. Finally, if things are truly desperate, there will be only one choice left -  to use a nuclear bomb. That could turn the asteroid into a meteor shower, which would be even more dangerous. Question: The author mentioned the asteroid that led to the dinosaurs' dying out to   _  . Options: A: show that asteroids fall from space frequently B: alert people about the possible danger of objects falling from space C: inform readers about the constant threats the Earth faces D: suggest that there are still many mysteries about the universe
B

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: While drunken driving may be on the decline, traffic safety experts remain puzzled over how to deal with another alcohol related danger: drunken pedestrains. Pedestrians struck and killed by cars often are extremely drunk. In fact, they are intoxicated  more frequently and with higher blood alcohol levels than drunken drivers who are killed in accidents, various studies have shown. Forty percent of adult pedestrians involved in fatal crashes have a blood alcohol level of at least 0.10 which by law in most states signifies intoxication compared to only 25 percent of drivers in deadly accidents, according to recent federal data. Some types of pedestrain accidents have been declining nationally, especially those involving children, but the number of adult pedestrians who are drunk when killed in traffic has remained  ly steady at 2500 a year. The total number of pedestrians killed annually in U.S. traffic accidents is at least 7000, or one of every seven highway accidents resulting in death. "We're dealing here, we think, with a very severe drinking problem that leads to a severe highway safety problem," said Richard Blomberg, president of Dunlap and Associates Inc, in Norwalk, Coon. w.w.^w.k.&s.5*u.c.#om.... Blomberg, whose consulting company found a very high rate of alcohol involvement in a controlled study of pedestrian accidents in New Orleans, was among several researchers who spoke on the topic at the annual meeting of the Research council's Transportation Research Board(TRB)  in Washington in January. Pedestrian accidents have not received enough attention in the past, according to Kay Colpitts, who chairs the board's committee on pedestrians. Few methods exist to monitor walking habits, she said, and researchers have been mystified about how to prevent disasters. Question: Among the causes of walkers' accidents, the most serious problem is .  _ Options: A: long delays in traffic signals that may make people cross streets without paying attention to traffic rules B: alcohol C: a lack of adult keeping eyes on many children involved in accidents D: former drunken drivers whose licenses are not allowed to use for a time


assistant: A: B