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Read the following article and select the best answer. Article: Mark Twain's works are enjoyed worldwide. His real name was Samuel Langhorne Clemens and he was born on November 30th, 1835, in the village of Florida, Monroe County, Missouri. After his father's death in 1847, Twain was apprenticed  to a printer and wrote for his brother's newspaper. Later, Twain worked as a licensed Mississippi riverboat pilot, adopting his name from the call ('Mark twain!'--meaning by the mark of two fathoms) used when sounding river shallows. After the Civil War, Clemens brought an end to the steamboat traffic and moved to Virginia City. On February 3, 1863, 'Mark Twain' was born when he signed a humorous travel account with his new name. In 1864, Twain went to San Francisco to work as a reporter. He traveled in France and Italy and his experience were recorded in 1869 in the Innocents Abroad, which brought him wide popularity, and made fun at both American and European prejudices and manners.  In 1870 he married Olivia Langdon. Together they relocated to Harford a year later. Meanwhile, Twain continued to lecture in the United States and England. Between 1876 and 1884 he published several masterpieces, including Tom Sawyer, the Prince and the Pauper, Life on the Mississippi, and Huckleberry Finn. In the 1890s, Twain lost most of his earnings in financial speculations and in the downhill of his own publishing firm. The death of his wife and his second daughter brought a sense of gloom in the author's later years, which is seen in writings and his autobiography. Twain died on April 21st, 1910. Question: The name 'Mark Twain' was first used - in 1835 - in 1863 - in 1869 - in 1870
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in 1863


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Read the following article and select the best answer. Article: Imagine living locked inside a closet. You can't choose when and what to eat or how you will spend your time. You can't even decide when the lights go on and off. Think about spending your whole life like this. This is the life of lab animals. Now consider the needs of these animals. Chimpanzees ,in their natural homes, are never separated from their families. They spend hours together every day. But in a lab, chimpanzees are put in cages alone. There are no families, only cold, hard cages, and loneliness that goes on for so many years that most of them lose their minds at last. Worse yet are the experiments. Animals are given diseases they would never normally get. Experimenters force-feed(......) chemicals to them, conduct repeated surgeries ,and much more, Think of what it would be like to put up with these and then be thrown back into a cage, usually without any painkillers. Often animals see other animals being killed right in front of them. Hundreds of thousands of animals are poisoned, blinded, and killed every year in product tests for shampoos, skin creams and new cancer drugs. Although more than 500 companies have stopped testing on animals, some of them still force chemicals into monkeys' stomachs and rabbits' eyes. Although some facilities are better than others at caring for animals--not every lab worker kills a mouse by cutting off its head with scissors--there are no happy animals inside laboratories. Will the lab life end? When will it end? Question: The author's attitude towards the future of animals for experiment can be described as   _  . - positive - worried - satisfied - disappointed
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worried


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Read the following article and select the best answer. Article: When I was little, I'd see tons of bats flying around streetlights at night in my neighborhood in upstate New York. But I'll never forget the first time when I saw a bat up close. By the time I turned 7, though, I noticed something strange: All the bats in my neighborhood had disappeared, and I wondered why. Then, three years ago, when I was 11 and visiting the state fair, I learned what had happened to my town's bats. A disease called "white nose syndrome" had killed 93 percent of New York State's bats. I was horrified. Then I wrote a letter to the host of an environmental program on the local radio station, asking if they could do a show on bats. They did! But I still wanted to find a way to educate people face to face. I reached out to a teacher I had in elementary school and asked if I could make a presentation to her class. I described how bats help farmers by eating crop-damaging insects. It went over so well that other teachers started requesting me. Over the past three years, I've talked in front of everyone from 5-year-olds to senior citizens! Many people think that bats are blind, and that they always carry diseases, but none of that is true. The more I present, the more I notice that I am changing minds.  And while getting people to respect bats is pretty hard, getting them to respect me has been difficult too. When I first applied to host a booth   at a local street fair, the managers thought I was too young. But I refused to take "no" for an answer. I continued to make my case, and they finally said yes! The best part is, I impressed them so much -- 100 visitors on my first day -- that they now invite me back every year. Question: All the bats in the neighborhood disappeared because they_. - were killed by a disease - moved to another habitat - were hunted by other animals - hid in a place where people couldn't find them
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