Problem:OPTIONS:
- food stuck between your teeth may hurt your teeth
- all of the doctors agree that flossing is good for your heart
- doctors' judgment about flossing is based on medical research
- not every doctor thinks flossing helps to keep your teeth healthy

Read the following article and answer the question. Article: It is bad to have food stuck between your teeth for long periods of time. This is because food attracts germs; germs produce acid, and acid hurts your teeth and gums. Flossing helps to remove the food that gets stuck between your teeth. This explains why flossing helps to keep your mouth healthy, but some doctors say that flossing can also be good for your heart. It may seem strange that something you do for your teeth can have any effect on your heart. Doctors have come up with a few ideas about how flossing works to keep your heart healthy. One idea is that the germs that hurt your teeth can leave the mouth and travel into your blood.Germs that get into the blood can then attack your heart. Another idea is based on the fact that when there are too many germs in your mouth, the body tries to fight against there germs. For some reason, the way the body fights these mouth germs may end up weakening the heart overtime. _ . Some doctors think that the link between good flossing habits and good heart health is only a coincidence. The incidence of two or more events is completely random, as they do not admit of any reliable cause and effect relationship between them. For example, every time I wash my car, it rains. This does not mean that when I wash my car, I somehow change the weather. This is only a coincidence. Similarly, some doctors think that people who have bad flossing habits just happen to also have heart problems, and people who have good flossing habits just happen to have healthy hearts. The theory that flossing your teeth helps to keep your heart healthy might not be true. But every doctor agrees that flossing is a great way to keep your teeth healthy. So even if flossing does not help your heart, it is true to help your teeth. This is enough of a reason for everyone to floss their teeth every day. Question: From the passage, we know that _ . Answer:
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A: food stuck between your teeth may hurt your teeth

Problem:OPTIONS:
- $500.
- $800.
- $900.
- $1,000.

Read the following article and answer the question. Article: Look and feel better in 30 days, guaranteed! Our proven workout system helps you reach your goals fast. Many Americans are overweight for lack of physical activity. Many are struggling to lose weight, but most give up just within days. If you've struggled with diets and workout routines, only to feel like you aren't getting anywhere, our gym is for you! Take a moment to read this page to find out what we can do for you. Let us help you Reach your fitness goals quickly and safely Work out in a comfortable environment Look and feel great Get the results you've been looking for Have you tried dieting and working out, only to be let down? Do you have trouble pulling yourself to the gym every day? Our program is designed for the "average Joe or Jane" to be able to lose weight and keep it off, with a combination of nutrition, motivation, and fitness. Our fitness method Our workout system will ensure that you lose weight and build muscles quickly and safely. We have developed a workout that targets all the right muscle groups, while at the same time burning unwanted fat. Our experienced trainers can help you with nutrition in between workouts to allow you to reach your goals faster. Nutrition is a big part of getting fit; don't overlook it! If working out on your own hasn't produced the type of results you want, that's why we're here. Join today! We charge $500 for each membership, but people who join our gym today can get a 20 percent discount. Those who join in the following week can get a 10 percent discount. For more information, please click here. Question: How much do a couple have to pay if they join the gym today? Answer:
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A: $800.

Problem:OPTIONS:
- a town
- an Arabian
- a kind of coffee
- a sheepherder

Read the following article and answer the question. Article: Legends about the development of coffee are varied and interesting, involving chance occurrences, political tricks, and the pursuit of wealth and power. According to one story, a sheepherder named Kaldi, as he tended his sheep, noticed the effect of coffee beans. He noticed that the sheep became excited after eating the red "cherries" from a certain plant when they changed pastures . He tried it himself, and was soon as overactive as his sheep. Another story relates that a monk happened to discover that this fruit from the shiny green plant could help him stay awake. Another legend gives us the name for coffee, "mocha". Omar, an Arabian was thrown to the desert with his followers to die of starvation. In desperation, Omar had his friends boil and eat the fruit from an unknown plant. Not only did the soup save the group, but the residents of the nearest town, Mocha, took their survival as a religious sign. The plant and its beverage were named Mocha to honor this event. Coffee was introduced much later to countries beyond Arabia, whose inhabitants believed it to be a tasty thing and guarded its secret as if they were top secret military plans. The government forbade transportation of the plant out of the Moslem nations. The actual spread of coffee was started illegally. One Arab named Baba Budan smuggled beans to some mountains near Mysore, India, and started a farm there. Early in this century, some of those original plants were found still growing fruitfully in the region. Coffee today is grown and enjoyed worldwide, and is one of the few crops that small farmers in third-world countries can profitably export. Question: Mocha is originally the name of _ . Answer:
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A: a town

Problem:OPTIONS:
- rude taxi drivers are hardly seen in the US
- small-minded officials deserve a serious comment
- Canadians are not so friendly as their neighbors
- most Americans are ready to offer help

Read the following article and answer the question. Article: A report brought back by most visitors to the US is how friendly, polite, and helpful most Americans were to them. To be fair, this observation is also frequently made of Canada and Canadians, and should best be considered North American. There are, of course, exceptions. Small-minded officials, rude waiters, and ill-mannered taxi drivers are hardly unknown in the US. Yet American's friendliness and helpfulness is an observation made so frequently that it deserves comment. For a long period of time and in many parts of the country, a traveler was a welcome break in an otherwise dull existence. Dullness and loneliness were common problems of the families who generally lived distant from one another. Strangers and travelers were welcome sources of distraction, and brought news of the outside world. The tough realities of the border also shaped this tradition of hospitality. Someone traveling alone, if hungry, injured, or ill, often had nowhere to turn except to the nearest settler agent. It was not a matter of choice for the traveler or only a charitable impulse on the part of the settlers. It reflected the hardship of daily life: if you didn't take in the stranger and take care of him, there was no one else who would. And someday, remember, you might be in the same situation. Today there are many charitable organizations which specialize in helping the exhausted traveler. Yet, the old tradition of hospitality to strangers is still very strong in the US, especially in the smaller cities and towns away from the busy tourist routes. "I was just traveling through, got talking with this American, and pretty soon he invited me home for dinner, amazing." Such observations reported by visitors to the US are not uncommon, but are not always understood properly. The casual friendliness of many Americans should be understood neither as superficial nor as artificial , but as the result of a historically developed cultural tradition. As is true of any developed society, in America a complex set of cultural signals and... Question: In the eyes of visitors from the outside world, _ . Answer:
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A:
most Americans are ready to offer help