Read the following article and select the best answer. Article: President Barack Obama rode a bicycle at the White House Science Fair on April 22. But it wasn't an ordinary bike. As he pedaled, the President stayed in place, while the energy from his pedaling powered a water filtration system. He was testing an invention created by a team of 14 students from Northeast High School, in Oakland Park, Florida. Payton Karr, 16, and Kiona Elliot, 18, attended the fair as representatives of the project."We were hoping President Obama would ride the bike, but we didn't actually expect him to," Payton told TFK. " It really meant a lot." Kiona agreed. "It was pretty awesome to see the invention, which was invented by a group of 14 high school students and one teacher, along with the help of community members, got the interest of the leader of our nation," she said. The project was an idea that came about after one of the Northeast students, Kalie Hoke, visited Haiti after the terrible 2010 earthquake and saw how difficult it was to find clean water. The students invented a portable , bicycle-powered emergency water filtration system, which can provide 20-30 people with drinking water in a 15-hour period. The teens hope their invention will one day be used by relief organizations like the Red Cross. " They can take it to places after natural disasters so that water can be clean for the people there," said Payton. Payton and Kiona were among the 100 students from more than 40 states invited to the third annual White House Science Fair, in Washington, D.C., which is also attended by leaders in science and education. President Obama started the event in 2010 to _ students interested in STEM (Science, Technology, Engineering, Maths)."Well, if you're a young person and you produce the best experiment or design, you ought to be recognized for that achievement," Obama said when he first announced the fair. President Obama praised the projects during a speech to attendees after the fair. "The science fair projects of today could become the products and businesses of tomorrow," he said.... Question: The representatives of the bicycle-powered water filtration system _ . - were both community members - graduated from a famous university - finished the project with the help of their parents - were surprised that their invention interested Obama
were surprised that their invention interested Obama

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Read the following article and select the best answer. Article: I recently ran into a friend I hadn't seen for a long while.Our conversation was lively and full of news from both sides.Before we parted she said,"You'll have to drop in sometime." I immediately sensed that if I simply "dropped in'' I would take my friend by surprise,and I would be discouraged by the image of her standing in her doorway,staring at me,and asking,"Oh,err ...what brings you here?" Whatever happened to the unannounced drop-in visit? When I was growing up in the 1960s, it seemed that people - mostly relatives, but also friends - were always _ . My parents would put coffee on,and my mom would find something in the kitchen to serve along with it.Then the conversation would begin...The neighbor lady,a worrier,was unloading her sadness while my mom quietly listened.The Irish man next door had such an accent that I remember asking what language he spoke.My Polish relatives arrived in packs...But I never heard my parents say anything like "We weren't expecting you'' or "This isn't a good time."Drop-in visitors had a certain right of way and became No.1. What happened to such visits? Actually I know the answer.Times have changed.Everybody gets busy with work.There is no longer a stay-at-home mom keeping a pot of hot coffee or tea ready throughout the day for a surprise guest.Exploding malls and stores are now replacing homes as a central form of entertainment. Just the other day a former student of mine showed up."I'm sorry for the surprise visit."my student began."I just wanted to see if you still lived here.I'll only stay a minute."My response was immediate." No, you won't," I said."Just come in, sit, have coffee, and we'll talk.'' I had nothing in the kitchen but we ordered pizza.And we had a lovely time.I have tried to keep the drop-in tradition alive though it takes some effort. Question: The author writes the passage intending to _ . - encourage people to be drop-in visitors - explain how to deal with unexpected visitors - share his feelings about the drop-in tradition - show the importance of making friends
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share his feelings about the drop-in tradition

Ques: Read the following article and select the best answer. Article: From my first day, I was attending press conferences and other media events all over town. I got to attend events at places I had never thought I'd get to: the White House, the Senate and House of Representative buildings at the Capitol , the Department of Health and Human Services, just to name a few. And I was sent to cover these events as if I were a reporter, not just an intern . In fact, I never really felt like an intern. I was given the opportunity to do the work that everyone else at the paper was doing. I covered stories on my own and wrote the articles myself. I was included in discussions for story ideas. I helped to edit the articles that went into the paper. I was able to take part in every aspect of the newspaper that I wanted to experience. The best part of working at the Nation's Health was the staff. They were supportive in letting me go out and do things on my own, while I always knew that they would be more than happy to answer any questions or help me with any problems I might have. Best of all, they treated me as their equal, not just an intern whom they could get to do all the work they didn't want to do. After interning at the Nation's Health for nearly seven months and having more than 30 articles published, I had to move on. My experience there gave me insight into how the media work, which helps me when I'm trying to choose stories. In addition, it showed me that work really can be fun. Question: What is the passage mainly about? - How good reporting begins with journalism interns. - The author's opportunity to work at the Nation's Health. - The author's experience working as an intern - The author's first day as a professional reporter.
Ans: The author's experience working as an intern

Read the following article and select the best answer. Article: Englishmen speak British English and Americans speak American English. A student is learning to speak British English. He often asks himself, "Can Americans understand me when I speak British English?" Learners often ask "What's the difference between British English and American English?"Certainly there are some differences between British and American English. The Englishmen say "Have you a pen?" While Americans say "Do you have a pen?" The pronunciation is sometimes different. Americans often sound "r" in words like "bird" and "hurt". The British speakers don't sound the "r" in these words. There are differences in spelling. For example, "colour" and "neighbour" are British while "color" and "neighbor" are American. These differences in grammar, pronunciation and spelling are not important, however. For the most part, British and American English are the same language. When Englishmen and Americans are talking with each other, they don't need an interpreter . Maybe some day they need, but not now. Question: "Have you a pen" and "Do you have a pen?" show a difference in _ - grammar - spelling - pronunciation - listening
grammar