input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Once there lived an old man in a town. He always forgot a lot of things. So his wife always had to say to him,"Don't forget this." One day he went on a long way alone. Before he left home,his wife said,"Now you have all these things. You need them on your way. Take care of your things on the way." He went to the station. He bought a ticket and got on the train with it. About an hour later,the conductor began to see the tickets. He came to the old man and said,"Will you please show me your ticket?" The old man looked for his ticket in all his pockets but he could not find it. He was very worried."I can't find my ticket. I really bought a ticket before I got on the train "said the old man. "I think you are right. I believe you bought a ticket. All right,you don't have to buy another ticket "said the conductor kindly. But the old man still looked worried and said sadly,"You don't know why I'm worried. If I don't find my ticket,I can't remember my station. Where am I going? " Options: A the man was very old B he thought the old man had no money with him C the old man showed him the ticket D he believed the old man Answer: D he believed the old man Question:???
output answer: The conductor told the old man that he didn't need to buy another ticket because _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Can dolphins talk ? Maybe they can't talk with words ,but they can talk with sounds . They show their feelings with sounds . Dolphins travel in group . We call a group of them a "school ". They don't study , but they travel together. Dolphins talk to other dolphins in the school .They give information . They tell other dolphins when they are happy or sad or afraid . They say "welcome "when a dolphin comes back to the school . They talk when they play . They make a few sounds above water . They make many more sounds under water . People can hear these sounds because they are very high . Sometimes people catch dolphins for large aquariums . People can watch the dolphins in a show . Dolphins don't like to be in the aquarium , being away from their school . They are sad and lonely if they do so . There are many stories about dolphins . They help people . Sometimes they save someone's life . Many people believe that dolphins can bring good luck . Options: A they are above the water B they are under the water C they are very high D they are very low Answer: C they are very high Question:???
output answer: People can't hear the dolphin's sounds because _ >

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: We humans can play the piano . of course we play the piano with our ten fingers . But Teotronica can play with its 19 fingers . Teotronica is not a human . It is a robot . It is a special robot which can play the piano like humans . Nattei Suzzi is the inventor of Teotronica . Matteo Suzzi comes from Italy and he is more than thirty years old . He was interested in science when he was young . He always likes to use his head to create amazing things . He spent four years making the musical robot . He made the piano-playing robot at a cost of about 4,700 dollars . Teotronica is a special and great robot . It has more fingers than humans . It plays the piano faster than a human . Teotronica can sing as well when it plays the piano . It is the first robot to do so and many people feel excited to see it ,. Teotronica can even use its eyes to interact with humans because there are cameras in its eyes .Teotronica is amazing , isn't it ? Options: A By using its eyes . B By using its arms . C By moving around . D By playing music and singing . Answer: A By using its eyes . Question:???
output answer: How can Teotronica interact with humans ?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Hi!I'm Lucy. I am a student in Class 5,Grade 7.I have a big schoolbag. It is blue and red. The price is Y=88.1.have a nice pencil box in it. It is Y=10.Its color is white. I bought it in a store. There are four pencils and one pen. Each pencil is Y=1 and the pen is Y=12.My eraser is yellow. The price is Y=2.My ruler is orange and very long. I like them very much. I study very hard. Options: A One B Seven C Three D Five Answer: B Seven Question:???
output answer:
I am in Grade _ .