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I'm taking a test and have to guess the right answer to the question after the article. Article: Don't drive your kids to school. Let them ride a bike to school. In England 8.3 million children travel to school every day. It is reported that only a small number of pupils cycle to school (under 2%), although one in three children would actually like to. Experts say that to stay healthy, children need at least one hour of moderate exercise every day. But only six out of ten boys and four out of ten girls get that. One of the reasons is that parents have developed a habit of driving their children to school when they could just walk or ride a bike to school. Teachers often say that children who walk or ride a bike to school are more ready to listen to their classes, ask and answer questions in class than those driven by car, and the school journey is a good chance for children to learn about road safety and other life skills. Also, for many children, riding a bike is more fun than going to school by car. Most parents know the benefits . Then what's stopping them from letting their kids ride a bike? Safety is the number one worry for them. But actually riding a bike is not as dangerous as parents think it is. When you decide to buy a bike, you should be aware that a bike that is too big or too small is dangerous. Don't try to get a bike that your child will "grow into". Get the right size in good working order. Generally, 20-inch wheels are on bikes for 5-8 year olds; 24-inch wheels are for 9-11 year olds; 26-inch wheels are suitable for those over 11, and some older children should even take bikes with 28-inch wheels, but the main thing is that the bike fits your child. Question: Generally, what size bike is suitable for a 10-year-old child? Options: A: A bike with 20-inch wheels B: A bike with 24-inch wheels C: A bike with 26-inch D: A bike with 28-inch wheels
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B

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I'm taking a test and have to guess the right answer to the question after the article. Article: "Tell me again how you learned to ride a horse," I would ask my father when I was a little girl in Denmark. I was no more than four years old--too little to learn to ride a horse by myself. But I liked to hear my father tell his story. And then he would begin. "When I was a little boy, as little as you are now," he would say, "I wanted to ride the horses. But I was too small to mount a horse. So I would slip into my father's stables to be with the horses and admire them. Such big, powerful animals they were! "The gentle workhorses stood quietly in their stalls, eating their hay. I would climb up the side of one of the stalls and slide over onto the horse's back. "Then I would hold its mane and imagine us running quickly over the grasslands, down to the shore, and even into the sea. "When I grew tall enough to mount a horse," he said, "my wish came true." "You swim with the horses now," I said. "You even swim with Fiery. And he has spirit!" Everybody knew about Fiery, the great black male horse with the fierce temper, and how he behaved when he first came to the stables. He raised itself on its back legs with the front legs in the air. He snorted and kicked. He rolled his eyes. And everyone was afraid of him. Everyone, except my father. I wanted to hear more. "Now tell me how you made Fiery your friend," I begged. This was my favorite story. "Well, little Else," my father went on, "I just talked to him. I talked as a friend. You must talk to a horse like Fiery. "I'd say, 'No, little horse. No, my friend. You can't run free. You must learn to let me ride you.' "And soon Fiery began to listen. He knew from my voice that I would be his friend." So Fiery let my father teach him to carry a rider. Then Fiery would take my father across the soft green grasslands or even into the lively waters of the northern sea. I loved to see Father riding Fiery without a saddle into the sea. There they swam, Father and Fiery, out in the cold, clear water. Often I would watch them from the shore, holding tight to my mother's hand.... Question: What does Else learn from her father's story? Options: A: How to train a workhorse. B: How to swim with a horse. C: How to make friends with a horse. D: How to ride a horse without a saddle.
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C

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I'm taking a test and have to guess the right answer to the question after the article. Article: Caffeine not only gives us a daily jump start, but new research suggests it also can strengthen long-term memory. According to the US Food and Drug Administration, nearly 90 percent of people worldwide consume about 200 milligrams of caffeine each day. That' s equivalent to about one strong cup of coffee a day. Writing in " Nature Neuroscience" , Johns Hopkins University researchers say their findings show that caffeine strengthens certain memories for up t0 24 hours after being taken in. " We've always known that caffeine has cognitive-enhancing effects , but its ,particular effects on strengthening memories and making them resistant to forgetting has never been examined in detail in humans, " said senior author of the paper Michael Yassa. " We re- port for the first time a specific effect of caffeine on reducing forgetting over 24 hours. " Conducting a double-blind trial, the researchers worked with a test group of people who didn't regularly consume caffeinated products. Five minutes after studying a series of images, the test subjects were given either a placebo or a 200-milligram caffeine tablet. To check the caffeine levels of their test subjects, the research team took saliva samples from them before they took their tablets and again one, three and 24 hours after- wards. Both groups of test participants ( those who took the placebo and those who took the caffeine tablet) were tested the following day to see if they could recognize the images they' d seen the previous day. The test included showing the test subjects another series of images that included some new images , those that were shown the previous day, as well as other images that were similar, but not the same as those they had viewed earlier. The researchers found that more members of the group who were given the caffeine tablets were able to correctly identify some of the new images as " similar" to previously viewed images rather than incorrectly identifying them as the same. "We also know that caffeine is associated with... Question: The purpose of the new research is Options: A: to survey how much caffeine people consume a day B: to write the paper " Nature Neuroscience" C: to prove caffeine has cognitive-enhancing effects D: to examine caffeine ' s memory-strengthening effects in detail
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D