Read the following article and select the best answer. Article: One day a poor man was cutting a big piece of wood near a river. Suddenly his old axe fell into the water. He felt very sad because he lost his only axe. Then all at once a beautiful fairy came out and asked the man what was the matter. "I have lost my axe, "he said. It fell into the water when I was cutting the wood. The fairy showed him a gold axe and asked, "Is this yours?". "No," said the man. The fairy then showed him a silver axe and asked again, "Is this yours?" "No," again answered the man. Then she showed him the old axe. "Yes, that is mine,"called out the happy man. "I know that well enough," said the fairy."I only wanted to see if you would tell me the truth, and now I'll give you the gold axe and the silver axe besides your own one." Question: At the end of the story the man had _ . - only one axe - two axes - three axes - many axes
three axes

Read the following article and select the best answer. Article: Imagine putting some bacteria in the freezer and taking them out millions of years later to find that they are still alive. That would be similar to what happened recently, when scientists brought eight-million-year-old bacteria back to life -- simply by thawing them out. The ancient bacteria were found frozen in the world's oldest known tracts of ice, the glaciers of Antarctica. Professor Bidle and his colleagues found and revived two samples of bacteria from the glacial ice. The first was a hundred thousand years old, and the second was around eight million years old. The eight-million-year-old bacteria were alive. But their genes were seriously damaged from long exposure to cosmic ( ) radiation, which is higher at the earth's poles. Most of the bacteria in the samples probably blew over from African deserts, said Paul Falkowski, a scientist at prefix = st1 /RutgersUniversity. Once the bacteria landed on the glacier's snowy surface, they combined with the snow to form ice. "These ices are actually gene banks," he added. As glaciers and ice caps melt as a result of increasing global warming, large amounts of bacterial genetic material might be washed into the ocean. These bacteria might get incorporated into today's bacteria in the ocean, or living bacteria from the ice might also grow and have an important effect on the ecosystem. "How that's going to play out, we don't know," Bidle said. He and Falkowski plan to focus their future work on how current ice melting influences modem bacteria's genetic diversity. Question: Professor Bidle and Paul Falkowski will probably do research into the influences of _ . - global warming - bacteria's genetic diversity - glacier melting - biological diversity
glacier melting

Read the following article and select the best answer. Article: My wife and I used to feel that it was impossible to be a true friend to someone whose name we didn't know. How wrong we were! Years of Sunday-morning bus trips through the city with the same group of "nameless" people have changed our thinking. Before the bus takes off, we all join in a conversation: where's the silent woman who sits up front and never responds to our cheery greetings? Here she comes. Her worn clothing suggests she doesn't have much money to spare, but she always takes an extra cup of coffee for the driver. We get smiles from a Mexican couple as they get on the bus hand in hand. When they get off, they're still holding hands. The woman was pregnant late last year, and one day her change of shape confirmed that she'd delivered the child. We even felt a little pride at the thought of our extended family. For many months, our only sadness lay in our inability to _ the same friendship with the silent woman at the front of the bus. Then, one evening, we went to a fish restaurant. We were shown to a table alongside someone sitting alone. It was the woman from the bus. We greeted her with friendly familiarity we'd shown all year, but this time her face softened, then a shy smile. When she spoke, the words escaped awkwardly from her lips. All at once we realized why she hadn't spoken to us before. Talking was hard for her. Over dinner; we learned the stay of a single mother with a disabled son who was receiving special care away from home. She missed him desperately, she explained. "I love him... and he loves me, even though he doesn't express it very well," she murmured. "Lots of us have that problem, don't we? We don't say what we want to say, what we should be saying. And that's not good enough."The candles flared on our tables. Our fish had never tasted better. But the atmosphere grew pleasant, and when we parted as friends--we shared names. Question: The woman had the same problem with her son in the way that _ . - they both disabled people - they both had some difficulty in expressing - they both liked bus travel - they both brought interest to the passengers
they both had some difficulty in expressing