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I'm taking a test and have to guess the right answer to the question after the article. Article: Your dog is as smart as any two year old, according to a new study. Dogs bring much happiness to their owners, and even improve human health. Most two year olds keep us busy in life -- an important part of living a long and happy life. According to Stanley Coren, Ph.D.of the University of British Columbia, our dogs are smarter than we thought. Dr.Coren reviewed many studies to find out that dogs are as smart as 2 to 2.5 year olds. Forget about one word orders -- according to Coren, the smartest dogs can learn up to 250 words. Most dogs understand an average of 165 words. "The upper limit of dogs" ability to learn language is partly based on a study of a Border Collie named Rico who showed knowledge of 200 spoken words, and 'fast-track learning', which scientists believed to be found only in humans and language-learning apes . Dogs are also great at tricking. During play, they have the ability to trick humans and other dogs in order to get treats. "And they are nearly as successful in tricking humans as humans are in tricking dogs, saysCoren. Dogs can also count to four or five, which might explain how they know when their toys are missing. Coren explains,"Their astonishing flashes of smartness and creativity are reminders that they may not be Ensteins, but are sure closer to humans than we thought." Animals can do much to keep us happy, health, and protect us from harm. Stories of dog heroes can be found using a simple Internet search. Pets teach us sense of duty, keep us from loneliness, and can help with treatment of the disabled. Dogs are smarter than we thought -- as smart as a two year old. Question: What makes Rico special? Options: A: He seldom uses one word orders. B: He uses words like a 2.5 year old. C: He is Corn's favorite subject for study. D: He shows a high level of language ability.
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D

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I'm taking a test and have to guess the right answer to the question after the article. Article: Even when you're extremely busy, you aren't using your time with 100% efficiency. There are gaps in everyone's schedule where they aren't doing anything important. Even if your schedule has no gaps, there is probably lots of time when you aren't working as fast or as effectively as you possibly could. Why aren't you completely efficient? It's because time isn't the limiting factor. If it were the limiting factor, people could work non-stop without breaks or any unproductive distractions . Instead, people, even those who are highly productive, need to take breaks, occasionally procrastinate and slow down on tasks throughout the day. The real and most important limiting factor for productivity is your energy levels to pay attention. Energy levels limit your productivity because when you're tired, you can have enough time and still not get everything done. Your attention ability is also limited, because even if there are a million things that need to be done, you can only focus on one or two at a time. You might not be able to insert another 4-5 hours into your schedule without making some sacrifices. But even extremely busy people can add an hour or two into their schedule without cancelling anything. The reason why it's hard to "find time" isn't a lack of time. It's because you don't have enough energy left to focus on something else that needs to fit into your day. I first suspected time wasn't the real problem during an extremely busy period in my life over a year ago. I was extremely busy, but at that time I still exercised regularly. I had daily to-do lists with over twenty items, and I still found time to exercise. However, after a few weeks off, due to illness, I stopped exercising. I was not busy by any standards, in fact, my schedule was incredibly light. Despite this free time, I found it hard to find time to exercise. It seemed to get pushed later and later into my schedule until it was gone. How can I explain this odd experience? I believe you have known it. Question: If someone can't work with 100% efficiency, the most important limiting factor is _ . Options: A: a schedule without gaps B: breaks and distractions C: the limited time D: the limited energy
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D

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I'm taking a test and have to guess the right answer to the question after the article. Article: How Many Lies Do the Children Tell You? Mothers who feel their children don' t appreciate them can add another _ to the list: half the time, their children are lying to them. A study designed to expose the truth about lying shows that undergraduates lie to their mothers in 46% of their conversations. Still, mums should feel better than total strangers, who are told lies an astonishing 77 % of the time. Bella Depaulo and a team of psychologists from the University of Virginia, Charlottesville, asked 77 undergraduates to keep a record of all their conversations for a week, and write down whether they lied at any time. DePaulo named lying broadly, as "when you intentionally try to mislead someone", so she would catch the smallest of lies. The students told an average of two lies a day. They said they had been studying when they had been out drinking. One told his parents that a textbook cost $50 rather than $20 so that they would send him extra money. Female students constantly told their plain-looking roommates that they were pretty. "They are everyday lies," says DePaulo. DePaulo and her colleagues conclude that people tend to tell fewer lies to those they feel closest to. College students lied to their best friends 28% of the time but lied to acquaintances 48% of the time. In close relationships, people were more likely to tell "kind-hearted" lies, designed to protect feelings, rather than self-serving lies. Romantic partners lie somewhere between close friends and acquaintances. Students lied to romantic partners about a third of the time. DePaulo thinks that unmarried lovers can expect less honesty than best friends because of the insecurity that comes with romance. Mothers can take heart from one other finding. They may have been lied to, but at least their children talked to them. The students were recorded telling few lies to their fathers because they had little interaction with them. Question: What is the purpose of this article? Options: A: To present a fact. B: To argue an idea. C: To tell a story. D: To explain a theory.
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A