Article: Staying in a Homestay in Canada will give you an excellent opportunity to improve your English conversation skills and know more about Canada customs and cultures. Our homestay families are located in areas of Vancouver,Toronto and Montreal,Canada,living from 40 to 60 minutes from the school. These homes are safe,secure,inspected and approved by our homestay program coordinators. Your homestay family in Canada will be different from your own,especially the food and customs,but you will become one of the family! Most Canadians work outside the home and are active in community affairs. Family members have duties around the home and do many things for themselves. For example,family members are expected to take their own dishes from the dining room to the kitchen and take care of their own possessions. This will apply to you too! There will be many differences,both personal and cultural between you and your homestay family in Canada. We ask both you and your new family to be accepting of these differences. Each family will assist you in learning the arrangement of your new home. You will be asked to respect the rules and regulations that are suitable for their household. If any questions arise about your new home,please feel free to ask your family. You will be provided with a clean,comfortable,private room. The room will be furnished with a desk,bed,dresser,closet and good lighting. You are expected to keep your own room neat and tidy. You will have your own house key. Please respect the security of the household. Make sure you return the key when you leave. Question: Why are you expected to return your key when you leave? Yes or no, is the answer "The homestay family can stay safe."?
No

Article: Dogs have an understanding of fair play and become angry if they feel that another dog is getting a better deal, a new study has found. The study looked at how dogs react when a companion is rewarded for the same trick in an unequal way. Friederike Range, a researcher at the University of Vienna in Austria, and her colleagues did a series of experiments with dogs who knew how to respond to the command "give the paw ". The dogs were normally happy to repeatedly give the paw, whether they got a reward or not. But that changed if they saw that another dog was being rewarded with a piece of food, while they received nothing. "We found that the dogs hesitated significantly longer when obeying the command to give the paw," the researchers write. The unrewarded dogs eventually stopped cooperating. Scientists have long known that humans pay close attention to inequity. But researchers always assumed that animals didn't share the trait. "The argument was that this is a uniquely human phenomenon," says Frans de Waal, a professor of psychology at Emory University in Atlanta. That changed in 2003 when he and a colleague did a study on monkeys. The monkeys had to hand a small rock to researchers to get a piece of cucumber in return. They were happy to do this. But if they saw that another monkey was getting a more delicious reward, a grape, for doing the same job, they would throw away the food and rock, and at some point just stopped performing. In that experiment, the monkeys considered the fairness of two different types of payment. But when Range and her colleagues did a similar study with their trained dogs, testing to see if dogs would become upset if they only got dark bread when other dogs received sausage, they found that as long as the dogs got some kind of food payment, even if it wasn't the most delicious kind, the animals would play along. Question: Range found that, compared with monkeys, dogs _ . Yes or no, is the answer "care less about what they are rewarded with."?
No

Q: Article: It is not unusual to see your desk-mate yawn as he complains that he didn't have a good sleep the night before. Many teens don't get enough sleep because they have too much homework, which keeps them up at night. Some teens cannot sleep at night even when they want to. Studies show that during your teenage years, the body's biological clock is reset, telling you to sleep later at night and wake up later in the morning. But changes in the body clock aren't the only reason teens lose sleep. Lots of people have insomnia . The most common cause of insomnia is stress. But all sorts of things can lead to insomnia. These include physical discomfort, emotional troubles and even sleeping environment. It's common for everyone to have insomnia from time to time. But if it lasts for a month or more go and see a doctor. Some people have a condition that causes stomach acid to move backward towards the chest. This produces the uncomfortable, burning feeling called heartburn. So even if the person doesn't notice the feelings of heartburn because he is sleeping, he may feel tired the next day. Most teens have nightmares sometimes. But, if they are frequent, a person's sleep pattern can be seriously affected. The most common cause of nightmares is emotional problems, such as stress or anxiety. If you have them a lot, it's a good idea to talk to a doctor. Doctors encourage teens to make lifestyle changes to develop good sleeping habits. You probably know that coffee can keep you awake, but did you know that playing video games or watching TV does the same? Question: What does the writer say about "nightmares"? Yes or no, is the answer "People will suffer from sleep if frequent."?
A: No

*Question*
Article: Bottled water has become the choice for people who are healthy and thirsty. Bottled water is all over the world. But some say the planet's health, and people's health may be suffering from it. The idea that bottled water is safer for humans may not be true. The Natural Resources Defense Council of America said, "There is no promise that because water comes out of a bottle, it is cleaner or safer than water from the tap." Another New York City-based action group added that some bottled water is "really just tap water in a bottle--sometimes more clean, sometimes not." It is not proven that bottled water is better than tap water. Nick Reeves from the Chartered Institution of Water and Environmental Management said, "The high mineral content of some bottled water makes them not good for feeding babies and young children." Also, most bottled water doesn't have fluoride , which can make teeth stronger. Kids are drinking more bottled water and less fluoridated tap water, and some say that's behind the recent rise in bad teeth. Storing is another problem. Placed near heat, the plastic bottles can produce bad chemicals into the water. According to the Environmental Protection Agency, some 2.7 million tons of plastic are used worldwide to bottle water each year. The plastic can take between 400 and 1,000 years to break down. In terms of energy use, plastic bottles are also not cheap. One report said that if water and soft drink bottlers had used 10 percent recycled materials in their plastic bottles, they would have saved about 72 million gallons of gas. So, if you are worried about the effect of bottled water on the Earth, you can take the following steps. *Drink from your tap. Unless your government warns against this, it should be fine. *Get a container . Carry your tap water in a steel or a lined drinking container, and clean it between uses. *Keep it cool. Don't drink from a bottle that has been sitting in the sun, don't store it near chemicals, and don't reuse plastic bottles. *Choose glass containers over... Question: What is the main idea of the article? Yes or no, is the answer "Bottled water may not be as good as we think."?
**Answer**
No