Please answer this: Write a multi-choice question for the following article: Article: Why did humans evolve to walk upright? Perhaps because it's just plain easier. Make that "energetically less costly", scientifically speaking. Bipedalism--walking on two feet, is one of the defining characteristics of being humans, and scientists have debated for years how it came about. In the latest attempt to find an explanation, researchers trained five chimps to walk on a treadmill while wearing masks that allowed measurement of their oxygen consumption. The chimps were measured both while walking upright and while moving on their legs and knuckles .That measurement of the energy needed to move around was compared with similar tests on humans and the results are published in this week's online edition of "Proceedings of the National Academy of Sciences". It turns out that humans walking on two legs use only one-quarter of the energy that chimps use while knucklewalking on four limbs .And the chimps, on average, use as much energy using two legs as they did when they used all four limbs. However, there were differences among chimps in how much energy they used, and this difference corresponded to their different manner of walking and anatomy .One of the chimps used less energy on two legs, one used about the same and the others used more, said David Raichlen, assistant professor of anthropology at the University of Arizona. "What we were surprised at was the variation ", he said in a telephone interview. Interview. "That was pretty exciting, because when you talk about how evolution works, variation is the bottom line, without variation there is no evolution." Walking on two legs freed our arms, opening the door to drive the world, said Raichlen. "We think about the evolution of _ as one of first events that led hominids down the path to being humans." The research was supported by the National Science Foundation and the L.S.B.Leakey Foundation.
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Answer: Question: We can infer from the passage that _ .Options:A scientists have no idea on how humans' walking on two legs came aboutB scientists have had different views on why chimps walk on four legsC scientists have had different views on how humans' walking on two legs vame aboutD scientists have had similar views on how humans' walking on two legs came aboutAnswer:C

Problem: Write a multi-choice question for the following article: Article: One day I was driving to a business appointment and, as usual, I was planning in my mind what I was going to say. I came to a very busy crossroad where the stoplight had just turned red. A young couple, both blind, were walking across the road. Each of them had a white cane . They were overcoming the most feared blindness. I held my breath when I noticed that the couple was not walking on the crosswalk, but was instead stepping directly into the middle of the crossroad. Without realizing the danger they were in, they were walking right into the path of the oncoming cars. I was frightened for them because I didn't know if the other drivers understood what was happening. Then I saw a _ unfold before my eyes. Every car in every direction came to a stop at the same time. Nobody can yelled, "Get out of the way!" Amazed, I noticed that everyone's attention was also fixed on the couple. Suddenly the driver to my right reacted. He yelled, "To your right."Other people followed, shouting, "To your right!"Trusting their elite canes and the calls from some concerned citizens, they made it to the other side of the road. I could judge they had no idea what was really going on around them. Yet I immediately felt smiles appeared on everyone's face. The driver to the left of me was saying, "I can't believe it!" I thought all of us were deeply moved by what we had just seen. Here were human beings stepping outsides themselves for a while to help other people in deed.

A: Question: When the author drove to work, he saw _ .Options:A some drivers were driving their cars very fastB a couple failed to cross the road as usualC most drivers drove in the same directionD A blind couple was walking into the drivewayAnswer:D

Problem: Given the question: Write a multi-choice question for the following article: Article: Health officials issued a waring over common energy-saving lghtbulbs after research showed some types could potentially harm the skin and may even raise the risk of cancer. A study by the Health Protection Agency (HPA) found that some eco-friendly lightbuulbs release levels of ultraviolet (UV) radiation that are above recognized safety limits. The agency urged people who work with lamps nearby to avoid spending more than one hour within a foot of the eco-friendly bulbs. The warning was directed at those using desk lamps for long periods, such as jewellery makers, and others who might have lights close to their faces, such as car mechanics. John O'Hagan, a scientist at the HPA's centre for radiation, chemical and environmental dangers, began tests on the ligthbulbs after patient groups raised concern about them. Among the groups were patients with a skin disease called lupus, which makes people highly sensitive to light. The tests measured UV light from the lamps and found the highest levels of UV radiation, measured 2cm from the lightbulbs, were _ to being outside in direct sunlight in the summer. The most immediate risk from the lightbulbs is a reddening of the skin similar to sunburn, but there is also a small increased risk of skin cancer associated with this, again similar to that of sunburn. The risk of health problems from the lightbulbs was not so high that people should remove them from their homes. People are advised to avoid using open lightbulbs for long close work until the problem is sorted out. It has confirmed that the government will not be reviewing its strategy on introducing energy efficient lightbulbs.
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The answer is:
Question: We can learn from the passage that _ .Options:A health officials issued a warning over common lightbulbs.B jewellery makers should avoid working with the eco-friendly bulbs for more than one hourC John O'Hagan did tests on the lightbulbs with some patientsD people are advised to avoid using open lightbulbs for long close workAnswer:D

Q: Write a multi-choice question for the following article: Article: Hamsters are lovely small animals which are similar to mice, and some people like to keep them as pets. They need to eat a balanced diet, or they can become very sick. That's why hamsters should be fed healthy foods. Most pet stores sell hamster mix. This is a combination of foods that are just right for hamsters. Some hamsters are picky eaters. They don't eat anything they don't like, so you have to find a hamster mix that your hamster will like. Most hamsters only eat a few tablespoons a day. You should feed them at the same time every day, or you can just keep your hamster's bowl full. Remember to clean the bowl at least once a week. Hamsters also drink a lot of water, so be sure to keep the water supply full and fresh. Just like people, hamsters like treats. Besides the hamster mix, you can sometimes feed your hamster seeds, nuts, and some other people food. You should never feed your hamster anything unless you are sure that it is safe for hamsters. Feed your hamster carefully, and always take good care of your pet!
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Question: What's the passage mainly about?Options:A Where to keep hamsters.B When to buy hamsters.C What to feed hamsters.D Why to raise hamsters.Answer:C