*Question*
Read the following article and select the best answer. Article: The dollar is becoming weaker and weaker. What effects will it have? Look at the recordhigh price of oil. Even if the same amount of oil is being pumped out of the ground,since it is traded in dollars and the dollar has weakened,the price of oil has increased to make up for the lost value of the dollar,creating a sort of vicious cycle . Oilproducing countries don't want to keep all the dollars they are getting for their oil,since it's declining in value,so they exchange their dollars for euros or other currencies. That pushes more dollars back out into currency markets,which in turn pushes down the dollar's value. One expert told ABC News that Russia used to have 90 percent of its financial reserves in dollars. It now has 45 percent in dollars,45 percent in euros and 10 percent in British pounds. In the US itself,the news is mixed. It's good,because it makes what we produce here cheaper to sell in foreign markets,and that in turn spurs  exports of our products around the world. That translates into more manufacturing and more jobs. But a weak dollar is bad,because it leads to inflation   in this country. Imports from foreign countries will become more expensive,and in particular,oil will be more expensive. That puts pressure on businesses to increase prices for anything that uses oil or products that come from overseas. One benefit for American shoppers is that China has largely pegged its currency to ours,so that keeps the price of Chinesemade goods low and therefore,keeps a check on inflation. Question: With the dollar losing its value,oilproducing countries will do all of the following EXCEPT   _  . - raising the price of oil - raising their production of oil - exchanging their dollars for other currencies - decreasing their financial reserves in dollars
**Answer**
raising their production of oil

*Question*
Read the following article and select the best answer. Article: Every small child knows the panic of losing sight of its mother in the supermarket, and as these delightful pictures show, small whales obviously feel the same way. Taken by a British diver who was following the sperm whale  calf, _ show the minute the baby - who had lost track of its mum - found her again in the sea off the Azores. Soaring 30ft across the waves, the newborn slammed its body onto the water with joy after becoming separated from its family group in the chilly waters. But the whale calf was doing more than just jumping for joy. British biologist and dive guide Justin Hart, 44, who took the pictures, says that young whales communicate with older ones in the ocean by creating a slamming sound which travels through the water to the ears of the adults deep below. By leaping out of the water and slamming its 12ft long body onto the surface of the sea up to 30 times, the baby whale is telling its relatives where it is so they can regroup. He said: "We had been following the sperm whale calf for most of the day. Sperm whales, of all the whales and dolphins, are the species that dive the deepest and for the longest time." "The calves have to follow what's going on below them from the surface as best they can probably listening to the echo location clicks of the adults." "However, sometimes the adults re-surface far out of sight of the calf, and in this situation the whales often leap out of the water causing a large bang as their bodies hit the surface. In this way, the whale family could regroup." He added: "When I took the photo, two adults' females had just resurfaced and the calf quite literally began jumping for joy." Mr. Hart captured the rare image four miles from the port of Lajes do Pico while he was working as a crewman on an underwater documentary with special license to film sperm whales in the area. Sperm whales live in nearly all the world's oceans in groups of about 15 to 20 animals and they practice communal  childcare. The calves do not have to follow their mother too closely as sperm... Question: What do we know about sperm whales? - The young are independent. - They are highly social animals. - They tend to live in warm sea waters. - Females take turns to care for babies.
**Answer**
They are highly social animals.

*Question*
Read the following article and select the best answer. Article: My father and I were very close. I loved pleasing him, and he was always proud of my success. If I won a spelling contest  at school, he was on top of the world. Later in life whenever I got a promotion , I'd call my father right away and he'd rush out to tell all his friends. In 1970,when I was named president of the Ford Motor Company, I don't know which of us was more excited. Like many native Italians, my parents were very open with their feelings and their loves not only at home, but also in public. Most of my friends would never hug  their fathers. But I hugged and kissed my dad at every opportunity for nothing could have felt more natural. He was a curious man who was always trying new things. He was the first person in Allentown to buy a motorcycle. Unfortunately, my father and his motorcycle didn't get along too well. He fell off it so often that he got rid of it just a month after buying it. As a result, he never again trusted any vehicle with less than four wheels. Because of that motorcycle, I wasn't allowed to have a bicycle when I was growing up. Whenever I wanted to ride a bike, I had to borrow one from a friend. On the other hand, my father let me drive a car as soon as I turned sixteen. Question: My father trusted no vehicle with less than four wheels because   _  . - he did not like the way I always borrowed bicycles from friends - he thought that cars were faster than motorcycles - he liked every new model made by the Ford Motor company - he had trouble in riding his motorcycle
**Answer**
he had trouble in riding his motorcycle

*Question*
Read the following article and select the best answer. Article: Since ancient times, people have known about its ability to reduce pain and high body temperature. More than 2000 years ago, the Greek doctor Hippocrates advised his patients to chew on the bark and leaves of the willow. The tree contains a chemical called salicin . From salicin, researchers in the 1800s discovered how to make salicylic acid . And in 1897, a chemist named Felix Hoffmann at Friedrich Bayer and Company in Germany created acetyl salicylic acid. Later it became the active substance in a new medicine that Bayer called aspirin. The "a" came from acetyl. The "spir" came from the spirea plant, which also produces salicin. And the "in" Well, that is a common way to end medicine names. In 1982, a British scientist shared the Nobel Prize in Medicine in part for discovering how aspirin works. Sir John Vane found that aspirin blocks the body from making natural substances called prostaglandins .Prostaglandins have several effects on the body. Some cause pain and the expansion, or swelling( ; ), of damaged tissue. Others protect the lining of the stomach and small intestine. Prostaglandins also make the heart, kidneys and blood vessels  work well. But there is a problem. Aspirin works against all prostaglandins, good and bad. Scientists learned how aspirin interferes with an enzyme . One form of this enzyme makes the prostaglandin that causes pain and swelling. Another form of the enzyme creates a protective effect. So aspirin can reduce pain and swelling in damaged tissues. But it can also harm the inside of the stomach and small intestine . Question: What can we know about Prostaglandin according to the passage? - It results from pain. - It prevents the lining of the stomach and small intestine. - It causes blood vessels to work wrongly. - It is sometimes good but sometimes bad.
**Answer**
