Read the article and select the best answer. Article: Inventors are always looking for ways to make our lives easier, greener and a lot more fun.Take a look at 2010's biggest and coolest breakthroughs in science and technology.What in the world will inventors dream up next? Superhero Suit Have you ever dreamed of becoming a superhero? Dream no more.There's a real Iron Man suit, XOS 2, which provides the power to lift 200 pounds with ease .It was designed to help the military with heavy lifting.One person in the suit could do the work of three soldiers. Up, Up and Away! It took him 30 years to develop it, and now Glen Martin's invention is ready to take off.The Martin Jetpack allows its operator to fly 8,000 feet into the air.Unfortunately, you can't soar through the skies too long.The jetpack holds only about 30 minutes' worth of fuel. Hardworking Robot The EMIEW2 robot is the perfect office helper.Need a document delivered? No problem! It can also guide visitors to their destinations.The three-foot-tall robot can identify different human voices and respond to commands.One day, it may serve as a receptionist or a security guard. Green Machine Say goodbye to gasoline! The AirPod car runs on air power.That means this car won't pollute.A high-pressure air tank can fill the car in minutes.The three-wheeler can travel about 130 miles between fill-ups. Beef Power All aboard the beef train! Amtrak's Heartland Flyer runs partly on fuel that is made from cow fat.The goal is to reduce carbon emissions by 10%.The train travels between Oklahoma City, Oklahoma, and Fort Worth, Texas. Robo-Guard EMILY is a robotic, four-foot-long buoy .She can swim through riptides at up to 24 miles per hour.Her inventor, Tony Mulligan, says that's 15 times as fast as human lifeguards! EMILY is powered by a tiny electric pump and operated by remote. Question: Which invention can carry you in the air? Options: A: Heartland Flyer. B: EMILY. C: XOS2. D: Martin Jetpack.
D

Read the article and select the best answer. Article: Maybe you're really busy. Maybe you don't have much to say. Or maybe you're just lazy. Not a problem. This free service works by letting you broadcast a group text message to your friends' mobile phones from either your own phone, an instant message or an online form at twitter.com. All your notes are then stored and displayed on your personal profile page on the site, which includes links to your friends' Twitter pages, a thumbnail picture of your choice, and a short bio. All this is what the new service Twitter can bring you. Just remember to keep it short: posts are limited to 40 characters, and the topic is, invariably, "What are you doing?" More often than not, it turns out, Twitter's 100,000 members--twice as many as it had just a month ago, according to Twitter business development director Biz Stone--are simply killing time. Even Presidential hopeful John Edwards is on it, although he seems to be the only one thinking about more than lunch. As I type this, Caroline is mulling over some Girl Scout cookies, Ian _ Hocking is "waiting for Jessica to arrive so we can eat!" and Hlantz is "having a nice cup of Soft Starmint tea." The chatter about Twitter turned into a virtual roar two weeks ago during the South by Southwest Multimedia Festival in Austin, Texas, when the barebones service owned by Blogger founder Evan Williams, 34, was named the best blogging tool and attendees used it to meet up at parties. Nevertheless, Twitter has been the top term on blog search engine Technorati for the past two weeks. Plenty of people would happily have Twitter silenced, rather than tolerate the beeping alert for yet another new text message. But I'm betting that Twitter will get a lot noisier before netizens move on to the next new thing. We cyber-junkies need a new thrill, and what is better than a service like Twitter that combines social networking, blogging and texting? And if you don't like it, well, in the words of one Twit from San Francisco, "I'm so sick to death of Twitter-haters. If you don't like it, why... Question: By quoting one Twit from San Francisco, the author implies that _ . Options: A: like it or not, Twitter will be accepted by more and more people B: if one doesn't like Twitter, he/she can choose not to mention it C: writing, reading and talking about Twitter is a waste of time D: twitter users naturally have a strong dislike for non-Twitter users
A

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Read the article and select the best answer. Article: Habits, whether good or bad, are gradually formed. When a person does a certain thing again, he is impelled(,) by some unseen force to do the same thing repeatedly; thus a habit is formed. Once a habit is formed, it is difficult, and sometimes impossible, to get rid of. It is therefore very important that we should pay great attention to the formation of habits. Children often form bad habits, some of which remain with them as long as they live. Older persons also form bad habits as long as they live, and sometimes become ruined by them.. There are other habits which, when formed in early life, are of great help. Many successful men say that much of their success has something to do with certain habits in early life, such as early rising, honesty and thoroughness . Among the habits which children should not form are laziness, lying, stealing and so on. These are all easily formed habits. Unfortunately older persons form habits which ought to have been avoided. We ought to keep from all these old habits, and try to form such habits as will prove good for ourselves and others. Question: The bad habits formed by _ Options: A: children sometimes stay in all their lives B: older people sometimes can kill them C: persons sometimes can remain with them D: younger people sometimes can break them
(Answer)
A