Problem: Given the question: Write a multi-choice question for the following article: Article: Have you ever noticed that some people are able to effortlessly remember even the most boring details, and quickly understand new things, and wished that you too could be like that? To unlock the full potential of your brain, you need to keep it active and acute. But how? Check out these tips: * Exercise & get your body moving Exercising doesn't just exercise the body; it also helps to exercise your brain. Without regular exercise your blood vessels begin to lose the ability to effectively pump blood and it also reduces the amount of oxygen and nutrients that your blood carries to your brain. When the nutrients don't make it there, the brain's ability to function is compromised. To prevent this from happening, make sure you get moving every day. Walking, swimming and dancing are all excellent activities. * Get rid of stressors and seek help for depression Among the most brain-damaging stressors is severe depression, which is actually often mistaken for a memory problem since one of its primary symptoms is the inability to concentrate. If you can't concentrate, you might feel like you are constantly forgetting things. Depression increases the levels of cortisol in your brain, which affects your memory. Seek professional help to get rid of your depression -- your brain will thank you. * Feed your brain 50 to 60 percent of the brain's overall weight is pure fat, which is used to insulate its billions of nerve cells. The better insulated a cell is, the quicker you will be thinking. This is exactly why parents are advised to feed their young children whole milk. Thus, eating foods that contain a healthy mix of fats is vital for long-term memory. Some excellent food choices include fish and dark leafy green vegetables.
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Question: The real cause of the inability to focus is _ .Options:A poor memoryB serious depressionC little exerciseD unhealthy eatingAnswer:B

Problem: Given the question: Write a multi-choice question for the following article: Article: Excused from recycling because you live in a high rise with a rubbish chute ? You won't be for long. Miami's Mark Shantzis has made it simple for those living in tall buildings to use the chute and recycle too . In Shantzis' Hi-Rise Recycling System, a chute leads to a pie-shaped container with six boxes that can turn around when operated. The system , which fits in the same space as the chute and container now in use, enables glass , plastic , paper , metal , and other rubbish to go into separate boxes . The system is controlled from a board next to the chute door. The board has a button for each class of recycling materials (as well as for unrecyclables). At the press of a button, a microcomputer locks all other floors' chute door and sets the recycling container turning until the right box comes under the chute. The computer also counts the loads and gives a signal by phone when the box is full. And a particular piece of equipment breaks up the nonrecyclables Sorting recyclables before they are collected saves the use of expensive materials recovery equipment which otherwise has to do the sorting . Such equipment often makes recycled materials very expensive, so expensive that tons of recyclables remain wasted . Shantzis believes his system could help recycled materials become more cost-effective.
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Question: The biggest advantage of this new system is that _Options:A it reduces the cost of recyclingB it saves time and spaceC it saves money for people living in high risesD it makes better use of the existing recovery equipmentAnswer:A

Problem: Given the question: Write a multi-choice question for the following article: Article: Many immigrants to the United States find the decision to seek better lives for their families in America can have an unexpected and tragic consequence . Deep differences with their children develop over language and culture. "Many immigrants arrive here without much education. Their kids soon gain language skills and also street marts on how to live in America, leaving the parents at a disadvantage," Ileana , Roses, pastor of a Methodist church group operating in Virginia, said. "Not only that but they find they cannot relate to children who quickly absorb American culture," she said. According to the US Census Bureau , the number of foreign born or first generation Americans reached 55 million last year, a record one in five of the total population. A government survey of 922 immigrants in 2000 found that nearly 40 percent of those who had been in the United States for more than 15 years would still like to take English classes if they had the time. Two thirds of low income households depended on their children for translation. Psychologists and sociologists say parents can lose their position of authority in a family as a result and the effects of that can be far-reaching. Children exposed to American pop culture that glorifies youth and sexuality often rebel when their parents try to impose the conservative values they brought with them. "Americanization erodes all important aspects of parenting," said Richard Weissbourd, who teaches education at Harvard University. "I feel a part of me is dying with my children. They don't listen to my music. I have to play it on Sunday morning when they are not around," said an immigrant.
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Question: From the passage we can infer that the population of the states at present is about _ .Options:A 275 millionB 220 millionC 255 millionD smaller than 250 millionAnswer:A