Read the article and select the best answer. Article: There are various ways in which individual economic units can interact with one another. Three basic ways may be described as the market system, the administered system, and the traditional system. In a market system individual economic units are free to interact among each other in the marketplace. It is possible to buy commodities from other economic units or sell commodities to them. In a market, transactions may take place via barter or money exchange. In a barter economy, _ goods such as automobiles, shoes, and pizzas are traded against each other. Obviously, finding somebody who wants to trade my old car in exchange for a sailboat may not always be an easy task. Hence, the introduction of money as a medium of exchange eases transactions considerably. In the modern market economy, goods and services are bought or sold for money. An alternative to the market system is administrative control by some agency over all transactions. This agency will issue commands as to how much of each good and service should be produced, exchanged, and consumed by each economic unit. Central planning may be one way of administering such an economy. The central plan, drawn up by the government, shows the amounts of each commodity produced by the various firms and allocated to different households for consumption. This is an example of complete planning of production, consumption, and exchange for the whole economy. In a traditional society, production and consumption patterns are governed by tradition; every person's place within the economic system is fixed by parentage, religion, and custom. Transactions take place on the basis of tradition, too. People belonging to a certain group or caste may have an obligation to care for other persons, provide them with food and shelter, care for their health, and provide for their education. Clearly, in a system where every decision is made on the basis of tradition alone, progress may be difficult to achieve. An inactive society may result. Question: What is the main purpose of the passage? Options: A: To outline contrasting types of economic systems. B: To explain the science of economics. C: To argue for the superiority of one economic system. D: To compare barter and money-exchange markets.
A

Read the article and select the best answer. Article: Generations of Americans have been brought up to believe that a good breakfast is essential to one's life. Eating breakfast at the start of the day, we have been told, and told again, is as necessary as putting gasoline in the family car before starting a trip. But for many people, the thought of food as the first thing in the morning is never a pleasure. So in spite of all the efforts, they still take no breakfast. Between 1977 and 1983, the latest year for which figures could be obtained, the number of people who didn't have breakfast increased by 33%--from 8.8 million to 11.7 million--according to the Chicago-based Market Research Corporation of America. For those who dislike eating breakfast, however, there is some good news. Several studies in the last few years have shown that, for grown-ups especially, there may be nothing wrong with omitting breakfast. "Going without breakfast does not affect work," said Arnold E. Bender, former professor of nutrition at Queen Elizabeth College in London, "nor does giving people breakfast improve work." Scientific evidence linking breakfast to better health or better work is surprisingly inadequate, and most of the recent work involves children, not grown-ups. "The literature," says one researcher, Dr Earnest Polite at the University of Texas, "is poor." Question: For those who do not take breakfast, the good news is that _ . Options: A: several studies have been done in the past few years B: the omission of breakfast has little effect on one's work C: grown-ups have especially made studies in this field D: eating little in the morning is good for health
B

Q: Read the article and select the best answer. Article: When school was out, I hurried to find my sister and get out of the schoolyard before seeing anybody in my class. But Barbara and her friends had beaten us to the playground entrance and they seemed to be waiting for us. Barbara said, "So now you' re in the A class. " She sounded impressed. "What' s the A class? "I asked. Everybody made superior yet faintly envious giggling sounds. "Well, why did you think the teacher moved you to the front of the room, Dopey? Didn' t you know you were in the C class before, way in the back of the room? " Of course I hadn' t known. The Wenatchee fifth grade was bigger than my whole school which had been in North Dakota, and the idea of subdivisions within a grade had never occurred to me. The subdividing for the first marking period had been done before I came to the school, and I had never, in the six weeks I' d been there, talked to anyone long enough to find out about the A, B, and C classes. I still could not understand why that had made such a difference to Barbara and her friends. I didn' t yet know that it was shameful and dirty to be a transient laborer and ridiculous to be from North Dakota. I thought living in a tent was more fun than living in a house. I didn' t know that we were gypsies, really (how that thought would have excited me then! ), and that we were regarded with the suspicion felt by those who plant toward those who do not plant. It didn' t occur to me that we were all looked upon as one more of the untrustworthy natural phenomena, drifting here and there like mists or winds, I didn' t know that I was the only child who had camped on the Baumann' s land ever to get out of the C class. I didn' t know that school administrators and civic leaders held conferences to talk about the problem of transient laborers. I only knew that for two happy days I walked to school with Barbara and her friends, played hopscotch and jumped rope with them at class intervals, and was even invited into the house for some ginger ale--a strange drink I had... Question: The basic reason why the people in the community distrusted the transient workers was that the transient workers _ . Options: A: tended to be lawbreakers B: were temporary residents C: were afraid of strangers D: had little schooling
A: B

*Question*
Read the article and select the best answer. Article: Play allows children to use their creativity while developing their imagination and physical, cognitive , and emotional strength. Play is important to healthy brain development. Play allows children to create and explore a world they can master, conquering their fears while practicing adult roles. Undirected play allows children to learn how to work in groups, to share, to negotiate, and to resolve conflicts. Ideally, much of play involves adults, but when play is controlled by adults, children acquiesce to adult rules and concerns and lose some of the benefits play offers them, particularly in developing creativity, leadership, and group skills. In contrast to passive entertainment, play builds active, healthy bodies. In fact, it has been suggested that encouraging unstructured play may be an exceptional way to increase physical activity levels in children, which is one important strategy in the resolution of the obesity problem. Children's development is critically influenced by appropriate, affective relationships with loving and consistent caregivers as they relate to children through play. When parents observe their children in play or join with them in child-driven play, they are given a unique opportunity to see the world from their children's vantage point as the child navigates a world perfectly created just to fit his or her needs. The interactions that occur through play tell children that parents are fully paying attention to them and help to build enduring relationships. Parents who have the opportunity to look at their children's world learn to communicate more effectively with their children and are given another setting to offer guidance. Less verbal children may be able to express their views, giving their parents an opportunity to gain a fuller understanding of their perspective. Quite simply, play offers parents a wonderful opportunity to engage fully with their children. Play is essential to the academic environment. It ensures that the school setting attends to the social and emotional... Question: Which of the following statements is NOT true? Options: A: Undirected play can help children develop team spirit. B: Play can improve children's willingness to learn. C: Play helps adults gain a better understanding of the children's thoughts. D: Adults shouldn't be involved in children's play.
**Answer**
D