阅读下列材料，从每题所给的A、B、C、D四个选项中选出最佳选项。

    People often ask why "Uncle Sam" is a nickname (绰号) for the United States of America. The reason is strange but simple.

    Once there was a man called Samuel Wilson. He was born in Arlington, Massachusetts, on 3 September 1766. His nickname was "Uncle Sam". When Sam Wilson was 14 years old, he joined the army and fought in some battles (战役). At the end of the war (战争) he went to live in the state of New York. He opened a meat-packing business (生意) there.

Sam Wilson worked hard and loved his country. People in the city liked him. One day in 1812, a reporter from a newspaper visited his business. The reporter looked at some boxes of meat. He saw the letters "EA-US" on the sides of the boxes.

    "What do those letters mean?" he asked one of the workers.

    "The ‘EA' stands for (代表) ‘Edward Anderson'," the workman replied. "The boxes of meat are for him."

    "What about the letters ‘US'?" the reporter asked.

    These letters really stood for "United States", but the workman wanted to have a laugh. "Oh," he said. "They stand for Sam Wilson. He has this company(公司). We call him ‘Uncle Sam'."

    The worker did not think that the reporter would believe him. But the reporter wrote a story about his visit to Sam Wilson's business. He wrote that his workers called him "Uncle Sam" and that "Uncle Sam" meant the United States.

Many people liked using the name "Uncle Sam" as a nickname for the United States and soon they were all using it. In 1961, almost 150 years later, the United States government(政府) made the nickname "Uncle Sam" official (官方的).

    Billy and Sam were twins. They were in the same class. They were both very happy. One day their teacher asked the class to write a composition(作文)"My Mother". Sam wrote one, but Billy was lazy. He just copied his brother's. The next day, the teacher asked Billy why his composition was the same as Sam's. "We have the same mother, don't we?" answered Billy.

根据短文内容选择正确的答案。

    Fresh off his MasterChef Junior run, Evan Robinson, who is only 12 years old, is using his kitchen skills to raise money for Puerto Rico. The TV show contestant wanted to offer help after hurricanes(飓风) hit the country last September.

    “I've been seeing, all over the news, people struggling,” Evan said. “They can't get fresh water, electricity; they can't get really anything. I know I'm just a kid, but I think if a lot of people do something, a lot of things will get better.”

    He raises money by baking and taking online orders for homemade empanadas(馅 饼). He started cooking on a recent Friday night. By the next Sunday evening, he had filled orders for 420 empanadas — — roasted chicken, cheeseburger and vegetarian — — getting $18 for six empanadas and $30 for a dozen.

    His mom, Veronica Robinson, helped him send the empanadas around the city. “We've never done anything like this before,” she said. “But it's a great idea, so I want to help him make it work.”

    For Evan's out-of-town friends and supporters, he has set up a crowdfunding(众筹) page. Through it, he's hoping to raise $1, 500 in “virtual (虚 拟 的) empanadas”. This is because he heard on the news that it could take Puerto Rico years, maybe  even 10 years, to recover(复 原) from the hurricanes. And he said, “Fruit pies are up next. And my baking will continue as well.”

    It's a difficult job, especially for a kid with homework and Boy Scouts and friendships to tend to. But he doesn't seem worried.

    “It's what we're supposed to do.” he said. “I'm a human. They're humans. Why shouldn't I help them?”

    Indeed.

    Many people think heroes need to be handsome, rich, or very smart. But as for me, a hero is a person who always helps others. My hero is Uncle Bill. He is the oldest son of a worker, and he grew up in a poor family with four younger brothers and two little sisters.

    He was good at neither writing nor maths. In fact, he never did well in school. So he had to give up school at a very young age. He worked and gave all his money to help his parents. When he was getting older, he found that he was very interested in fixing things. He collected broken things which people threw away and fixed them. He could fix almost everything that did not work. He worked hard and never gave up. Finally, he opened his own repair shop. It took him about 20 years to become a successful shopkeeper.

    Now, he is very rich and has four shops. But he never forgets the days when he had nothing. He gives money to poor families, helps poor kids buy books and offers them free lunch. He also encourages people to reuse things. He always says, "Make good use of what you have because we just have one earth."

    I am proud of Uncle Bill. He is really a hero.

    There is an old man in a house. In the house there are many mice. The old man has a cat. Every day the cat catches the mice and eats them.

    One day, the old mouse says, "All mice must come to my room this evening. We must find a way to deal with (对付) the cat."

    All the mice come. Many mice speak, but they don't know what to do. At last, a young mouse stands up and says, "We must put a bell (铃) on the cat. When the cat comes near, we can hear the bell and run away. So the cat can't catch us." "Who can put the bell on the cat?" asks the old mouse. But no one answers.