Read the following article and select the best answer. Article: For millions of years, sharks have been the kings of the oceans, the top of the food chain. But these days, the hunter has become the hunted, because of better methods from commercial fishermen who are looking for fins to make expensive soup sold mostly in Asia. Shark fins are far more valuable than shark meat, so fishermen cut the fins off live fish and throw the sharks overboard to maximize the catch they bring back. Shark finning is illegal in the United States, but there're tournament sport fishermen, who target and kill the biggest ones they take from the sea. These tournaments, the prizes of which can reach $5,000 or more, attract large crowds of anglers but also draw protests from animal rights groups and environmentalists. The competitors say they are enjoying a fun and legal sport, the impact on the overall shark population is very small, and most of the sharks caught are returned to the ocean. Dave Johnson, who is from Kennebunkport, Maine, said no one ever comes close to the limit set by the government of killing one shark per day during the three-month season. "I enjoy watching these animals, but I also enjoy catching and releasing them, and very rarely killing them and eating them," he said. "If I thought killing one shark was endangering the species and contributing to their decline I'd stop doing it tomorrow." That is exactly what marine biologists like Luke Tipple want to happen. "I believe that they should just stop it. In fact, we don't need to be targeting, in any way, any of these threatened populations," he said. Up to 73 million sharks are killed annually, and many species are at risk of extinction . Question: In Tipple's opinion, _ . - no shark should be caught or killed - the tournaments should target common species - sport fishermen should release sharks in time - more strict limits should be set by the government
no shark should be caught or killed

Read the following article and select the best answer. Article: A nurse prepares a polio vaccination for a baby in the Otash refugee camp in South Darfur. United Nations and Sudanese agencies will carry out the campaign this week and again in November. Sudan had been polio-free since two thousand and five. The new case of wild polio virus was _ last month in South Darfur. Health officials also announced last month that Nigeria has had almost seventy new cases of polio since two thousand and five. Those cases, however, were caused by the polio vaccine itself. There are two kinds of polio vaccine . The one given by injection contains killed virus, which cannot cause polio. The one given by mouth contains live but weakened virus. In very rare cases the virus can change and cause polio. The way to stop the spread now is more vaccinations. But officials worry that people in northern Nigeria may, once again, fear the vaccine. In recent years, local leaders spread stories that Western nations had poisoned the vaccine with the virus that causes AIDS. The United States Food and Drug Administration had told parents not to give them to children under age two unless a doctor says to use them. The F.D.A. gave the advice as it announced a meeting of experts to discuss cold medicines for children. That advisory committee met last week -- and voted that these drugs should not be given to children under the age of six. Members said there is not enough evidence to show that these drugs work in children. They called for more research. The committee also said that liquid medicines should all use the same measurement terms. This could reduce the risk of parents giving their children too much. _ The drug industry says its products are safe and effective for children. But it says parents need to be better educated about how to use them. A week before the meeting, the industry decided to end sales of cold products for children under two. Question: Why do officials worry that people in northern Nigeria may fear the vaccine once again? - Because the vaccine has no effect on polio - Because the vaccine with the virus can change and cause polio - Because the stories were spread that western nations had poisoned the vaccine with the virus that causes AIDS. - The passage doesn't tell us.
Because the stories were spread that western nations had poisoned the vaccine with the virus that causes AIDS.

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Read the following article and select the best answer. Article: Katharine Meyer Graham was once described as "the most powerful woman in America." She was not a government official or elected representative. She owned and published The Washington Post. Under her leadership, it became one of the most important newspapers in the country. Katharine Meyer was born in New York City in 1917. Her father was a successful investment banker and became an important financial official. Her family was very rich. Katharine grew up in large houses in New York and Washington. Her parents were often away from home, traveling and working, Katharine was often lonely. Katherine Meyer graduated from the University of Chicago in Illinois in 1938. In 1933, her father bought a failing newspaper, The Washington Post. It was the least successful one of five newspapers in Washington. Katharine Graham returned to Washington and got a job editing letters to the editor of her father's newspaper. She married Philip Graham. He was a clerk for Supreme Court Justice Felix Frankfurter but soon accepted a job at his wife's father's newspaper. Mr. Graham improved The Washington Post. He bought Newsweek and several television stations. He also established close ties with important political leaders. However, Mr. Graham treated his wife badly. He had an affair with a young reporter. For many years, Mr. Graham suffered from mental illness. He killed himself in 1963. Katharine Graham had four children to raise and a newspaper to operate. At first, she was only concerned about finding a way to keep control of The Washington Post until her sons were old enough. She did not think she had the ability to do an important job. She had no training in business or experience in operating a large company. In those days, it was unusual for a woman to be the head of a business. Women were expected to look after their homes and children. Katharine Graham met with officials of The Washington Post. She was elected president of The Washington Post Company. She had no idea about how to operate a newspaper. So she decided to... Question: After Katharine Graham got married _ . - her husband gave up his previous job - she got a job editing letters for the editor - she made The Washington Post improved - her husband wanted to be a political leader
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her husband gave up his previous job