*Question*
I'm taking a test and have to guess the right answer to the question after the article. Article: Scientists have found what look like caves on Mars , and say they could be protecting life from the planet's terrible environment. The first caves discovered beyond the Earth appear as seven mysterious black dots on the pictures sent back by NASA's Mars Odyssey orbiter. Each as large as a football field, they may be openings into natural caves below the Martian surface. "If there is life on Mars, there is a good chance you'd find it in caves," said Jut Wynne, one of the researchers who noticed the features while working on a US Geological Survey Mars Cave Detection Program. Jonathan Clarke, a geologist with the Mars Society of Australia, yesterday described the discovery as exciting. One photo taken at night by an infrared imager showed one hole to be unusually warm, suggesting hot air trapped during the day is flowing out. "I said: 'Wow, that's a cave'" Dr. Clarke said excitedly. "People have been looking for these for a long time; now we have found them." He agreed such caves would be perfect places to hunt for life escaping from the bitterly cold, radiation-soaked , dry surface. "Tiny drops of water could collect inside," he said. "If there are gases coming out, they could provide energy for a whole range of bacteria. A cave is also a protection from radiation; the surface of Mars is exposed to high levels of space radiation." The caves probably formed when tube-shaped lave flows spread across the planet long ago. The outside of the tubes cooled, forming solid walls, while something hotter inside allowed the remaining have to flow out, forming caves. Question: We can learn from the passage that_. Options: A: water has already been found on Mars B: the scientists found all the caves at night C: it is certain that there is life in these caves D: the surface of Mars is bitterly cold, radiation-soaked and dry
**Answer**
D

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I'm taking a test and have to guess the right answer to the question after the article. Article: What Is Self-tracking All about Have you ever monitored something about yourself? Perhaps you've tracked how many kilometers you've run, how many hours you've slept or how many calories you've eaten in a day. If so, you've taken part in a movement called the "Quantified Self Movement." Individuals gather information about their daily activities in this popular movement, also called self-tracking. This may sound difficult, but technology is making the process easier. Perhaps you've wanted to change a bad habit but couldn't. Self-tracking may be your answer. The idea is to take information about your everyday activities and analyze them to help form a healthier lifestyle. Recently, tools such as smartphones, journals and apps, along with newly published wearable things, are making self-tracking extremely easy. Today, one can use Fitbit, the Jawbone Up, Google Glass or a smart watch to record personal data including sleeping hours, stress levels, heart rate and mood. So why does a person self-track? Someone may be trying to lose weight or improve their sleep patterns. Another person feels tired after eating. Self-tracking could help him to know what foods make him sleepy and watch his diet. Monitoring daily activities isn't a new concept. In years past, athletes and their coaches kept notes detailing nutrition, training and sleep patterns in order to achieve an athletic goal. Similarly, doctors have also helped patients to record parts of their lifestyles and eating habits to help fight allergies, headaches and other health problems. However, it wasn't until 2007 that magazine editors Gary Wolf and Kim Kelly, who started tracking every move they made, coined the term "Quantified Self." Wolf says that the new tools will change our sense of self with the purpose of making us more effective in the world. Although self-tracking has many advantages, Dennis Nash, president of Data Speaks Health Solutions, says self-tracking has its drawbacks. Once people start tracking their daily activities, it can become an addition... Question: You can find this article in the part of _ . Options: A: Education B: Entertainment C: Health D: News
**Answer**
C

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I'm taking a test and have to guess the right answer to the question after the article. Article: New York has taken the title of the world's top fashion capital from Milan. The annual survey suggest that the top five fashion cities are facing competition from Asia and Australia. New York had been the top fashion city for five years, but Milan took the title in 2009. The survey was made by the Global Language Monitor, a US based organization. It tracks the frequency of words and phrases in the media, on the Internet and throughout the blog. With the US economy recovering, New York once again took the top title. Hong Kong took second place. It was followed by London, Paris and Los Angeles. The other top 10 cities were Milan, Sydney, Miami, Barcelona and Madrid. "Because of the new economic situation, the global fashion centers have also changed a lot, "said Bekka Payack. the Manhattan-based fashion reporter for the Global Language Monitor. "The new list shows that global fashion centers will change now and then. Compared with the traditional fashion cities, some new ones are performing better and better. "She said that perhaps this is new trend, and it is the first sign that the traditional top five fashion cities----New York, Paris, London, Milan, and Rome----do not control global fashion any more. The biggest changes in the list are Hong Kong, Madrid and Melbourne. The Group said that the top newcomers to the list include Amsterdam at number 17, Cape Town at 23, Johannesburg at 25 and Vienna at 27. The following are the 10 top fashion cities of 2010 and the changes from 2009. 1. New York(up 1) 2. Hong Kong(up 5) 3. London(up 2) 4. Paris(down 1) 5. Los Angeles(up 1) 6. Milan(down 5) 7. Sydney(up 2) 8. Miami(up 5) 9. Barcelona(up 5) 10. Madrid(up 11) Question: New York has regained the title of the world's top fashion capital mainly because _ . Options: A: the US economy has been recovering B: Milan faced competition from other cities C: few big cities took part in the competition D: the survey was made by an American organization
**Answer**
A