Read the article and select the best answer. Article: A portable lung which could help those with breathing problems lead a normal life is being developed by scientists. The Swansea University scientists say it could take many years before the device , the size of a spectacle box , is available . Lung patients , who have seen how it would work , have welcomed the research. Its research suggests that one person in every seven in the UK is affected by lung disease---- this equates to approximately 8 million people. As of 6 March 2009, 217 people were on the waiting list for a lung transplant according to figures by NHS Blood and Transplant . Now scientists in Swansea are developing a portable artificial lung which could transform the lives of patients . Researchers claim that in the long term the device could offer an alternative to lung transplant , giving hope to those who suffer from conditions such as emphysema and cystic fibrosis. The device mimics the function of a lung---by getting oxygen into and carbon dioxide out of the blood stream . Professor Bill Johns came up with the idea after his son died of Cystic Fibrosis . It is important that we make something that will help people , who instead of being confined to a wheelchair with an oxygen bottle , can actually walk around and do things for themselves , he said. Although the research has been welcomed by leading charities , caution has also been voiced over the length of time it will take before a portable lung will become available . "We have to stress that this is several years away from being used , even in a trial stage," said Chris Mulholland , head of the British Lung Foundation. Patient Elizabeth Spence from Swansea has been refused the double lung transplant she needs but remains hopeful that one day the new device could save her . " My body will reject the lungs , so this possibly could be an answer--- another way of getting new lungs without actually having the transplant," she said. Question: It seems as if _ really matters before the portable lung is put into use. Options: A: support B: money C: time D: trial
C

Read the article and select the best answer. Article: For centuries ,the only form of written correspondence was the letter .Letters were ,and are ,sent by some form of postal service ,the history of which goes back a long way. Indeed ,the Egyptians began sending letters from about 2000 BC, as did the Chinese a thousand years later. Of course ,modern postal services now are much more developed and faster ,depending as they do on cars and planes for delivery .Yet they are still too slow for some people to send urgent documents and letters. The invention of the fax machine increased the speed of delivering documents even more .When you send a fax ,you are sending a copy of a piece of correspondence to someone by telephone service .It was not until the early 1980s that such a service was developed enough for businesses to be able to fax documents to each other. The fax service is still very much in use when copies of documents require to be sent ,but ,as a way of fast correspondence, it has been largely taken the place of by email. Email is used to describe messages sent from one computer user to another. There are advantages and disadvantages with emails. If you send someone and email, then he will receive it extremely quickly. Normal postal services are rather slow as far as speed of delivery is concerned. However ,if you write something by email ,which you might later regret ,and send it immediately ,there is no chance for second thoughts. At least ,if you are posting a letter you have to address and seal the envelope and take it to the post box .There is plenty of time to change your mind. The message is think before you email! Question: We can learn from the text that_. Options: A: email is less popular than the fax service B: the postal service has over the years become faster C: the postal service has over the years become slower D: the fax service has a history as long as the postal service does
C

Read the article and select the best answer. Article: One day, a train was approaching the small town of Cheekyville. On the train was a young man with a big suitcase. He was called William Warbler, and he looked very common indeed. What made him most unusual, though, was the fact that whenever he needed to communicate he did it by singing opera . It didn't matter to William whether it was simply a matter of answering a brief greeting, like "good day". He would clear his voice and respond, "Gooood dayyy to youuuuuuuu... toooooo!" No one could get a normal spoken word out of him and no one knew how he made his living. As he lived quite simply, always wearing his same old second-hand suit, people often looked down on him. William had been in Cheekyville for some years, when, one day, word spread round town like wildfire: William had played a role in a very important opera in the nation's capital. Everyone in the capital went to see it, and it was a great success. Everyone in Cheekyville felt it was a surprise. But something more surprising was, when William was being interviewed by reporters, he answered their questions by speaking rather than singing. And he did it with great manners, and with a clear and pleasant voice. From that day, William gave up singing at all hours. Now he did it only during his stage appearances and world tours. Some people suspected why he had changed, but others continued believing him to be somewhat mad. They wouldn't have thought so if they had seen what William kept in his big suitcase. It was a large stone, with a hand-carved message on it. The message said: "Practice, my boy. Practice every second, for you never know when your chance will come." Little did people realize that he only got the role in the opera because the director had heard William singing while out buying a newspaper. Question: According to the text, William _ . Options: A: had no idea whether he should continue doing something mad B: was nervous and didn't know how to sing when he was interviewed C: was selling newspapers when the opera director heard him singing D: practiced singing whenever possible before he became famous
D