Question: Read the following article and select the best answer. Article: Last year college students in America spent an estimated $700 on textbooks on average. The National Association of College Stores reported more than five billion dollars in sales of textbooks and course materials. The association spokesman Charles Schmidt says electronic textbooks now just make up 2%~3% of sales. But he says that is expected to reach 10%~15% by 2012. Online versions are now available for many of the most popular college textbooks. An etextbook can cost half the price of a new print textbook. But students usually lose access to them after the end of the term. And the books cannot be placed on more than one device ,so they are not easy to share. So what do students think of etextbooks?Administrators at Northwest Missouri State University wanted to find it out. Earlier this year they tested them with 500 students in 20 classes. The university is unusual. It provides laptop computers for all 7,000 of its fulltime students. It does not require students to buy their textbooks either. They rent them to save money. The school aims to save even more by moving to etextbooks. The students in the survey reported that downloading the books from the Internet was easy. They liked the idea of carrying lighter backpacks. And 56% said they were better able to find information. But most found that using etextbooks did not change their study habits. And 60% felt they read more when they were reading on paper. In all,almost half the students said they still liked physical textbooks better. But the survey found that cost could be a big influence.55% said they would choose etextbooks if using them meant their textbook rental fee would not increase. Roger Von Holzen heads the Center for Information Technology in Education at Northwest Missouri State University. He tells us that administrators are disappointed with the etextbooks now available because the majority are not interactive . He thinks growth will come when more digital books include video,activities,games and other ways to interact with the information.... Question: Etextbooks are not better than paper books in that _ . - they cost more money - they're difficult to carry - they're not convenient to share - they can't be downloaded from the Internet
Answer: they're not convenient to share

Question: Read the following article and select the best answer. Article: Below are the top four supermarket chains in the world in 2012 and the reasons behind their success. Tesco Headquartered in Chestnut, United Kingdom , this global grocery store is one of the largest supermarket chains in terms of revenues and profits. If was founded in 1919 by Jack Cohen. Tesco stores can be found across all continents. Even though it was set up only for food and beverages, Tesco has drastically branched out , not only in geographical terms, but also in terms of products. Which now include electronics , clothing, health care, home improvement and even financial services. Safeway Founded in the year 1915 by a young M. B, Skaggs. Safeway developed from just a small grocery store on the fundamentals of providing value to customers and narrow profit margins. The success story of Skaggs becomes more evident when , by the end of the year 1926,he had opened almost 428 stores across ten states. Almost two years later, Safeway was listed at the New York Stock Exchange . At present, there are more than fifteen hundred Safeway stores across US and Canada. The Kroger Company Founded at Cincinnati, Ohio, US in 1883 by Mr. Bernard Kroger, the Kroger Company is now one of the largest supermarket chains not only in the US. but across the world . Over the last couple of decades, the Kroger Company has vastly expanded by acquiring popular brand names, including those of Owen's Market. Its stores are largely spread out across Middle. Western and Central United States. Reve-Gruppe Reve - Gruppe was founded in 1927 and is presently headquartered at Cologne, Germany . This supermarket chain is easily counted among the top supermarket chains of the world . Its vast line of products includes grocery, home improvement, pharmaceuticals, cosmetics, optical as well as clothing . Its stores can be found in as many as fourteen European countries, providing employment to more than 325,000 people. Question: According to the passage, the Kroger Company_. - is presently headquartered in the United Kingdom - has fifteen stores in the US and Canada - developed quickly by acquiring popular brand names - provides employment for more than 325,000 people
Answer: developed quickly by acquiring popular brand names

Question: Read the following article and select the best answer. Article: Dogs may not know exactly what you are doing especially when you're trying to figure out a square root or diagram a sentence. But according to a new study, dogs can understand what we're thinking and feeling by reading our facial expressions and body language and following our eyes. Researchers studied 29 dogs. The dogs were shown a movie where a woman looked directly at them and said "Hi dog!" Then, the woman looked at a flowerpot sitting next to her. The researchers found that when the woman looked at and spoke directly to a dog, the dog usually followed her eyes to the flowerpot. It proved that the dogs knew that the woman was thinking about the flowerpot. "By following the eye movements of dogs, we were able to get a first-hand look at how their minds are actually working," said Jozsef, the senior researcher. Later in the movie, the woman said "Hi dogs" in a low voice and didn't look at the dog before looking at the flowerpot. In that situation, the dogs didn't seem to understand what the woman was thinking. There was no eye contact, and the woman didn't appear to speak to the dogs directly. That comes as no surprise to dog trainer Jones. "Dogs normally speak through nonverbal signals. It's more natural to them," she said. "If you've ever watched dogs at a dog park, you've seen it. Within 30 seconds they enter the park, much information has passed between the new dog and the ones already in the park. They're exchanging looks, observing eyes and body posture. On the other hand, when you speak to a dog, they are learning a foreign language." Picking up your nonverbal signals seems more natural. So, if you were hoping that all this means your dog could help you solve your math problems, you're probably out of luck. But he or she might a lot more what you're thinking than you previously thought. Question: How could the researchers find that the dogs understood the woman's intention? - By speaking to them directly. - By reading their eye movements. - By following their facial expressions. - By asking the dog trainer questions.
Answer:
By reading their eye movements.