Read the following article and select the best answer. Article: A newly-wedded couple on a four-month honeymoon were hit by six natural disasters, including the Australian floods, Christchurch earthquake and Japanese tsunami . Stefan and Erika Svanstrom left Stockholm, Sweden, on December 6 and were immediately stuck in Munich, Germany, due to one of Europe's worst snowstorms. Travelling with their baby daughter, they flew on to Cairns in Australia which was then struck by one of the most violent cyclones in the nation's history. From there, the couple, in their 20s, were forced to shelter for 24 hours on the cement floor of a shopping centre with 2,500 others. "Trees were being knocked over and big branches were put down across the streets, " Mr. Svanstrom told Sweden's Expressen newspaper. "We escaped by the skin of our teeth." Mr. Svanstrom said they then headed south to Brisbane but the city was experiencing massive flooding, so they crossed the country to Perth where they narrowly escaped burning bush fires. The couple then flew to Christchurch, New Zealand, arriving just after a massive magnitude 6.3 earthquake attacked the city on February 22. Mrs. Svanstrom said, "When we got there the whole town was like a war zone. We could not visit the city since it was completely blocked off, so instead we travelled around before going to Japan." But days after the Svanstroms arrived, Tokyo was rocked by Japan's largest earthquake since records began. "The trembling was horrible and we saw roof tiles fly off the buildings," Mr. Svanstrom said. "It was like the buildings were swaying back and forth." The family returned to Stockholm on March 29 after a much calmer visit to their last destination China. But Mr. Svanstrom --- who also survived the destructive Boxing Day tsunami that hit southeast Asia in 2004 --- said the marriage was still going strong. He added, "I know marriages have to experience some difficulties, but I think we have been through most of them. We've certainly experienced more than our fair share of disasters, but the most important thing is that we're... Question: In Svanstrom's opinion, a marriage _ . - has to go peacefully and happily for all time - has to experience many disasters at the beginning - must always allow the couple be together and happy - should experience difficulties to make it steady
should experience difficulties to make it steady

Read the following article and select the best answer. Article: Around the world coral reefs are facing threats brought by climate change and great changes in sea temperatures. While ocean warming has been the primary focus for scientists and ocean policy managers, cold events can also whiten corals. A new study by scientists compared damaged to corals exposed to heat as well as cold stress. The results show that cool temperatures can cause more damage in the short term, but heat is more destructive in the long run. Climate change is widely known to produce warming conditions in the oceans, but extreme cold-water events have become more frequent and serious as well. In 2010, for example, coral reefs around the world faced on of the coldest winters and one of the hottest summers on record. During a unique experiment, corals under cold temperatures suffered greater damage in just days compared with heat treated corals. Yet the researchers found that corals were eventually able to adjust to the cold conditions, make their health stable and continue to grow. However, over the long term corals subjected to heat suffered more greatly than those in cold, with evidence of severe whitening and growth stoppage, which leads to death. The coral's ability to adjust to cool temperatures surprised the researchers, who say the study's results show the complexities of monitoring coral health in response to different environmental factors . "Global warming is associated with increases but also decreases of temperatures," said Deheyn, one of the researchers. "Not much has been known about the comparative effects of temperature decrease on corals. These results are important because they show that corals react differently to temperature differences, which is important for future management of coral reefs in the field of climate change." Question: According to the research, _ . - corals may continue to grow in cold events after a few days - cold events help corals grow more quickly in a short time - corals show no response to hot temperatures in the first days - corals are whitened mainly because of warm temperatures
corals may continue to grow in cold events after a few days

Read the following article and select the best answer. Article: Roger Conner is a modern-day Horatio Alger hero. Roger started out as an unpaid worker in a small flower shop. He has become the owner of a florist company whose sales are well over $100 000 a year. One day when Roger was only twelve, he stopped at a local flower shop. He asked the owner if he could work for him, without pay, in order to learn the business. Roger started working every day after school and on weekends. After two years on the job, he finally asked for a small salary. The owners told him he "wasn't good enough to be paid." So he quit, and found a paying job at another local flower shop. He worked hard there, but after six months they _ because business was slow. Not discouraged, Roger decided to do it alone and started his own flower store in a basement in his town. He started his business with only sixty-five dollars. He bought old refrigerators at garage sales and knocked the shelves out. This turned them into coolers for his fresh-cut flowers. His business grew rapidly as he built up a reputation for top quality and fine service. In 1977, Roger bought out the flower store where he had worked without pay for over two years. The people who said he "wasn't good enough to be paid" were astonished to find that they were being taken over by a teenager. He had plans to renovate the whole store. One of the reasons the owners sold out to Roger was that the store wasn't doing well. But after Roger took over ownership and redid the store, business started booming. In fact, business was so good that after one year, he celebrated by buying out the other store where he had worked. Roger then combined both stores and moved to a location in the center of his town. The new store has 2 000 square feet and seven employees. And he did it all before he reached the age of twenty. Question: From the passage, a "Horatio Alger hero" may be the kind of person who _ . - works hard in the flower business - was born into a rich family - starts out poor and becomes rich - becomes famous as a result of good luck
starts out poor and becomes rich