input: Please answer the following: Write a multi-choice question for the following article: Article: Put technology in the hands of someone like Elon Musk and it can send people into space, make a future of clean and renewable energy a reality, or build electric cars. Put in your hands, and it can help you achieve all sorts of things, from learning to code to learning a language. Educational apps are becoming increasingly popular as a supplement , and sometimes as an alternative , to traditional education. Why? Well, for starters, it's extremely convenient to learn on a pocket-sized device that you already carry around with you at all times. The best apps are also highly interactive and adaptive, _ . But apps, just like textbooks and language lessons, are a medium through which a language can be studied. The way you use them will affect how successful you are. If you flick through a textbook and don't dare say a word in your language lessons, you'll make slow progress. The keen reader who repeats each exercise in the textbook and engages the teacher in the conversation will move ahead. So how do you ensure you get the most out of your app, and what should you consider before you install one? Before that, a very quick introduction: I developed the following five points from my experience as both a language teacher and learner, and from working in startups in the field of language. I spent six years teaching in Germany and Spain as well as developing a video learning startup. However, I first came to language learning late. I started learning Spanish at 22, and was able to use Spanish and German freely by about 28. I've been using language apps for the last few years, and participated in two successful one-week challenges to go from zero to hero in Italian and French. If you're interested, you can see the French challenge here. So, just before downloading an app, here's what you should think about...
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output: Question: We infer that Elon Musk is most probably _ .Options:A an app developerB a language teacherC a professor at collegeD an engineer and tech company ownerAnswer:D

input: Please answer the following: Write a multi-choice question for the following article: Article: About five years ago I started at a new school when my family moved to Iowa. I was just a little ex-cited, but I worried I would never fit in with the other sixth graders. Lucy, a girl in my class, who I thought was not ready for change, didn't like me from the start. In fact, I was pretty sure she hated me. I would ask her a question, and I could tell she thought I was a total fool. My teacher made us sit by each other for the last term. Lucy was horrified . I didn't wear make-up , and I didn't wear those terrible bell-bottom pants. I didn't exactly look like the coolest girl. But, I kept smiling at her, though she rolled her eyes, and I kept telling her she looked beautiful, even when she was angry. Finally, Lucy let me talk to her, even in sight of her "cool" friends. She started telling me how beautiful I looked. I still remember that first time when she smiled at me saying that, and I smiled right back, telling her thanks. Lucy invited me over to her house for a party, and talked to me all the time instead of her other friends. Lucy, the girl who hated me, called me her best friend. After that, we still were good friends a whole year later. I may have moved to Arizona after that, but I will never forget Lucy. It's funny -- I still remember her birthday. She was a great friend. And to think, she considered me her enemy at first. Though it was hard, and it felt like I was wasting my time, and losing my dignity , I still smiled at Lucy when she made fun of me. I'm not stupid, I didn't think she was right in doing those things, but I still put up with it. And we became great friends. About two weeks ago, I read a sentence by Abraham Lincoln: "Am I not destroying my enemies when I make friends of them?" Immediately, I smiled, thinking of Lucy. That sentence just reminded me how great it was for me to change Lucy into my friend in that state of Iowa five years ago.
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output: Question: What is the main idea of this passage?Options:A Patience is important in making friends.B Friendship needs to be cared for.C Making friends means losing enemies.D Kindness can defeat any enemy.Answer:C

input: Please answer the following: Write a multi-choice question for the following article: Article: Your smartphone can do a lot of things. It can call people. It connects to the Internet. It enables you to play fun games. But there is a _ side to this smart little equipment of yours----- it might also spread disease. "People are just likely to get sick from their phones as from handles of the bathroom, " Jeffrey Cain, the president of the American Academy of Family Physicians , told The Wall Street Journal. This may be hard to believe, but scientists reached this conclusion after they tested eight cell phones from an office in Chicago. All the tested phones showed high numbers of coliforms , a kind of bacteria found in human waste , with about 2700 to 4200 units of the bacteria on each phone. The bacteria can cause flu, pinkeye and other diseases . That is right --- your phone is covered in our human waste. Although computers, keys and pens carry germs , our phones get far dirtier. They touch a lot of things, including our hands and the inside of our pocket or purse. We take them almost everywhere: the bus, the subway and who hasn't played Angry Birds or Fruit Ninja while sitting on the toilet? "Some things that we think are personal are actually more public than we imagine," Cain said. What is even worse is that after the phone returns from its dirty trip, it then spends most of its time cozying up to our faces. You don't think about how often you touch your phone to your face, do you? Our noses, mouths and ears are all warm and rich in grease , an environment that germs really like. So how do you keep your phone clean? Alcohol is effective when used to kill germs from the back and side of your phone. But it might harm the screen. There is one simple and reliable way you can reduce the germs on your phone's surface: wash your hands regularly.
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Question: By saying "Some things we think are personal are actually more public than we imagine," Cain means that _ .Options:A people love to share their phones more than they realizeB our personal items could be as risky to our health as public itemsC phones are used in public places more than people realizeD Most people don't know how dirty their cell phones areAnswer:C