input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Amos Dudley, a 24-year-old boy who studies digital design at New Jersey University of Technology, felt ashamed about his teeth. But being a student, Dudley didn't have the money to get braces . So, he decided to 3-D print his own and marked down the DIY project in a recent blog post. His braces totaled less than $60, and after wearing them for 16 weeks, his teeth are also getting straighter. Months ago, he mentioned on his blog that he avoided smiling for a while because he was unhappy with his teeth. However, clear braces can get pricey, costing up to $8,000. But after studying some images of these expensive clear braces, something comes up on him--they looked like that one which can come from a 3-D printer. So he decided to hit up his school's 3-D printing equipment and scanned and printed models of his teeth. He then made non-harmful plastic molds around them to make 12 sets of braces. Dudley, who does not recommend attempting any of this at home said that he didn't ask a dentist for his project. But the student did get information from journal articles and textbooks. And though this was a perfectly friendly choice to buy braces. He didn't accept the project just to save money--he was also up for the challenge. "When I realized that I could do something that was a little bit special, while proving my skills as a designer and a maker, and fixing something that was making me self-conscious for actually free, I felt it was more than worth the risk." he said. Options: A a professional magazine B a recent blog post C journal articles and textbooks D a 3-D printer user Answer: C journal articles and textbooks Question:???
output answer: Dudley got the information on making a 3-D printed braces from _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Babysitter wanted( ) Do you like children? Do you have free time in the afternoon? We need a babysitter for our daughter. She's six years old. Working time: Monday to Friday, 3:00pm--6:00 pm. Cost: $5 an hour. We need help with: Looking after our daughter, reading to her, playing with her. Address: You must work at our house. We live in Changjiang Road, near the Culture Square. Please call Mr. Wang at 0551-487-2563. Options: A Three hours. B Ten hours. C Fifteen hours. D Twenty-one hours. Answer: C Fifteen hours. Question:???
output answer: How long does the babysitter need to work a week?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Dear Linda, I'm glad to hear from you and I would like to be your pen friend. In your letter, you said you wanted to know something about my school life . I walk to school at 7:30 every morning because the school is near our house. When I get to school at about 7:45, I often do the cleaning with my classmates. After that we do some reading for half an hour. We have four lessons in the morning. I often have my lunch at 12:00 at school. We usually have two lessons in the afternoon. The school is over at about 5:00 and then I go home. My favorite subject is Chinese. I like all the teachers because they are friendly. I am keen on sports and I enjoy playing football best. I'm a member of our school football team. What about your school life? Best wishes! Dick Options: A half an hour B 15 minutes C 10 minutes D 5 minutes Answer: B 15 minutes Question:???
output answer: It often takes Dick about _ to walk to school every morning.

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Do you remember when your grandma told you the story of Snow White? Ah, the happy days of childhood! But did you know that Snow White comes from Germany? It's just one story from the 209 in Grimm's Fairy Tales (<<>> ). The Grimm brothers started to collect fairy tales in 1806. Their first book came out in 1812. Why are German fairy tales so interesting? Maybe it's because they come from a great place famous for its stories - the Black Forest. The Black Forest is in southwest Germany. It's the largest forest in the country - and one of the most beautiful. It's famous for its trees and lovely views, There are valleys and waterfalls there. It's a good place to start a story. Don't forget to bring something back if you visit. People there are good at making clocks, musical instruments and watches. Options: A Four years B Five years C Six years D Seven years Answer: C Six years Question:???
output answer:
How long had the Grimm brothers been collecting stories?