Ques:I'm taking a test and have to guess the right answer to the question after the article. Article: My son loves video games very much. He spends hours every day playing video games in his room. Is there anyredeeming educational value to video games? Some seem like they could help him learn strategy. But I worry others may be too violent ornumb his mind. Cecilia Some games may improve kids' hand-eye coordination and problem-solving skills. Games that require kids to actually move ormanipulate the game through their own physical movement can even get _ kids moving, though not as much as they could if they actually played outside or participated in sports or other outdoor acuities. Others, though, don't have such benefits, and violent video games have been shown that they might increase kid's aggressive behavior. Like a lot of aspects of raising kids, when it comes to video games, the healthiest approach is actually self-control. The American academy of Pediatrics(AAP) recommends that kids should spend no more than 2 hours each day on screen time, including watching TV or movies, or playing computer or video games. So consider setting limits at least that strict to keep game playing from affecting their schoolwork, household responsibilities, and the physical activity your son needs very day. Make sure that he's playing games which are suitable for his age group. All video games are rated and labeled by the Entertainment Software Rating Board. Steer clear of any rated "M" for mature. Those are for ages 17 and older and can contain heavy-duty violence, strong language, and sexual content. Try to keep the video gameconsole in a common area of the house, not your son's room. That way you can catch any inappropriate content in the games he's playing, and he'll be in a position to interact with others in the house while he's playing. Make sure your son has appealing alternatives, too, such as sports, activities, opportunities to socialize with peers; and downtime to be creative. If you continue to have concerns about his video game activity, talk with your doctor. Reviewed by:Mary L. Gavin, MD Question: According to Mary L. Gavin, which of the following is encouraged to do by parents? Options: A: Keep the video game console out of their house. B: Allow their children to play only such video games as rated "M" C: Let kids play video games as much as possible if it doesn't affect their lessons. D: Help their children develop other healthy hobbies such as sports and painting.

Ans:D
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Ques:I'm taking a test and have to guess the right answer to the question after the article. Article: A black hole is a place in space where gravity pulls so much that even light cannot get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes. Space telescopes with special tools can help find black holes. The special tools can see how stars that are very close to black holes act differently from other ones. Black holes can be big or small. Scientists think the smallest black holes are as small as just one atom. These black holes are very tiny but have the mass of a large mountain. Mass is the amount of matter, or "staff", in an object. Another kind of black hole is called "stellar" . Its mass can be up to 20 times more than the mass of the sun. There may be many stellar mass black holes in Earth's galaxy. Earth's galaxy is called the Milky Way. The largest black holes are called "supermassive" . These black holes have masses that are more than one million suns together. Scientists have found proof that every large _ contains a supermassive black hole at its center. The supermassive black hole at the center of the Milky Way galaxy has a mass equal to about four million suns and would fit inside a very large ball that could hold a few million Earths. Scientists think the smallest black holes formed when the universe began. Stellar black holes are made when the center of a very big star falls in upon itself, or falls apart. When this happens, it exploded part of the star into space. Scientists think supermassive black holes were made at the same time as the galaxy they are in. A black hole can not be seen because strong gravity pulls all of the light into the middle of the black hole. But scientists can see how the strong gravity affects the stars and gas around the black hole. Scientists can study stars to find out if they are flying around, or orbiting a black hole. When a black hole and a star are close together, high-energy light is made. This kind of light cannot be seen with human... Question: According to the passage, which of the following is NOT true? Options: A: A black hole can be very tiny but extremely heavy. B: The gravity of a black hole holds all light in its center. C: Scientists observe high-energy light through their own eyes. D: Some small black holes came into being as early as the universe.

Ans:C
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Ques:I'm taking a test and have to guess the right answer to the question after the article. Article: People who breathe infected air from a TB patient can become infected with the tuberculosis  bacteria . However, most people with active tuberculosis do not expel (,)very many TB bacteria. So, the spread of the disease usually does not happen unless a person spends a large amount of time with a TB patient. Those most at risk are family members, friends and people who live or work closely with a patient. Tuberculosis can attack any part of the body. However, the lungs are the most common targets  of the bacteria. People with the disease show several signs. They may expel air from the lungs suddenly with an explosive  noise. This kind of cough continues for a long period of time. People with a more severe case of tuberculosis also may cough up blood. People with the disease often have high body temperatures. They suffer what are called night sweats, during which their bodies release large amounts of water through the skin. TB victims also are tired all the time. They are not interested in eating. So their bodies lose weight. One thing that is especially dangerous about TB is that people with moderate  signs of the disease may not know they have had it. They may spread the disease to others without even knowing it. So, it is very important for people to get tested for tuberculosis. Question: Why may some TB patients spread the disease to others without even knowing it? Options: A: Because there is no sign in the early stage of the disease. B: Because these patients don't show any signs of the disease. C: Because these patients' signs of the disease are too weak to be noticed. D: Because these patients don't know how the disease spreads between people.

Ans: