Read the following article and select the best answer. Article: None of our early ancestors could digest milk as adults because their bodies never had to -milk drinking simply wasn't an option.As people began to extract milk from animals, though, some people developed the ability to keep drinking it throughout their lives. Scientists mow know of a milk-related mutation in our genes--the chemical instructions for life that we carry in almost every cell in our bodies.People who have a mutated form of one particular gene can drink milk just fine.People without the mutation tend to get sick from milk. To figure out where, and possibly why, milk drinking started, some scientists have been looking at who has the milk-digesting mutation to day Pattems are striking. Most adults in Northern and Central Europe are able to digest milk--and they do.Cheese, butter and other dairy products are popular in countries such as Sweden, Denmark, Germany and England.Because European settlers dominated North America, most people here can handle milk just fine, as well.That may explain why ice cream is such a popular dessert in the United States. In much of Africa, Asia and South America, on the other hand, people tend to avoid dairy products because they lead to diarrhea and other stomach problems.(That's why you won't typically find cheese on the menu at a Chinese, Japanese or Ethiopian restaurant.) Native Americans are also unable to digest milk. Based on these genetic patterns, scientists have long thought that milk drinking started in Northern Europe, where dairy is an institution and the milk-digesting mutation is everywhere. A recent study painted a different picture.With a computer model, Thomas and colleagues looked at the spread of the milk-drinking mutation, farming and other related factors.Working backward, the scientists concluded that the first milk-drinkers lived in Central Europe around what's now Hungary about 7500 years ago.The practice didn't start farther north, as scientists had thought before. Question: Most people in the USA can digest milk because _ . - they have strong stomachs - their ancestors were Europeans - that's where milk drinking started - farmers raise a lot of cows there
their ancestors were Europeans

Read the following article and select the best answer. Article: Lacrosse is a popular sport in Canada. It is one of the oldest organized sports in America. The Indians in northern New York State and southern Ontario, Canada, invented it. They used it to train for war. They invented this game before Columbus arrived in the New World. People play lacrosse outdoors. The lacrosse field is seven metres long. At each end of the field there is a net. There are ten players on each team. Each player has a stick called "crosse". The players hit a ball that is 21 centimetres around and weighs 140 grams. They try to hit the ball into the net as many times as possible. Lacrosse is a very fast game because the players can catch and pass the ball at a high speed with their sticks. At one time lacrosse was the national summer sport in Canada. It is also popular in Britain and Australia. Question: Lacrosse was invented because it was used to _ . - honour God - have fun - lose weight - train for war
train for war

Read the following article and select the best answer. Article: The most frightening words in the English language are, "Our computer is down." You hear it more and more when you are on business. The other day I was at the airport waiting for a ticket to Washington and the girl in the ticket office said, "I'm sorry, I can't sell you a ticket. Our computer is down." "If your computer is down, just write me out a ticket." "I can't write you out a ticket. The computer is the only one allowed to do so." I looked down on the computer and every passenger was just standing there drinking coffee and staring at the black screen. Then I asked her, "What do all you people do?" "We give the computer the information about your trip, and then it tells us whether you can fly with us or not." "So when it goes down, you go down with it." "That's good, sir." "How long will the computer be down?" I wanted to know. "I have no idea. Sometimes it's down for 10 minutes, sometimes for two hours. There's no way we can find out without asking the computer, and since it's down it won't answer us." After the girl told me they had no backup computer, I said. "Let's forget the computer. What about your planes? They're still flying, aren't they?" "I couldn't tell without asking the computer." "Maybe I could just go to the gate and ask the pilot if he's flying to Washington, " I suggested. "I wouldn't know what gate to send you to. Even if the pilot was going to Washington, he couldn't take you if you didn't have a ticket." "Is there any other airline flying to Washington within the next few hours?" "I wouldn't know, " she said, pointing at the dark screen. "Only 'IT' knows. 'It' can't tell me." By this time there were quite a few people standing in lines. The word soon spread to other travelers that the computer was down. Some people went white, some people started to cry and still others kicked their luggage. Question: The best title for the article is _ . - When the Computer Is Down - The Most Frightening Words - The Computer of the Airport - Asking the Computer
When the Computer Is Down