input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: In fall 2006,the National Basketball Association (NBA)started using basketballs made with synthetic ,or man-made ,material instead of leather .They made the change be- cause they wanted every basketball they use to feel and bounce the same.Not all leather balls are exactly alike in weight or how they bounce,but the synthetic balls are. However,some players complained right away that the new balls bounced differently and were actually harder to control than the leather ones. Physics helped answer questions about why the new balls felt different.For example,the scientists studied friction ,which in this case affects the ability of a player to hold onto a ball."The greater the friction,the better it will stick to his hand,"explains a scientist. Tests on both wet and dry balls showed that while the synthetic ball was easier to hold onto when dry,it had less friction and became much harder to hold onto when wet.That's because _ stays on the surface of the synthetic balls but gets taken into the leather balls. The scientists also tested bounce and found that the logo printed on the new balls made their surface uneven and caused them to bounce a little strangely com- pared with the leather balls. In January,the NBA went back to using the leather balls.They aren't perfect,but for now,that's just the way the ball bounces. Options: A Because they are easier to control. B Because they waste less material. C Because they look exactly alike. D Because they feel and bounce alike. Answer: D Because they feel and bounce alike. Question:
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output: Why were the synthetic balls expected to be used in NBA according to the text?

input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: Dear Tom, Thanks for your letter. Do you want to know about my evening? Well, I usually get home from work at 6:00 pm. I cook dinner for my family--my parents, my sister and my brother. After dinner I usually watch TV, play computer games or play chess. I like playing chess because my father works in a chess club. I take a shower at around nine o'clock and then go to bed at around nine- thirty. Sometimes I read some books because I can learn something about my work. How about your evening? Write to me soon, please. Best wishes, Victor Options: A Victor's work B Victor's evening C Victor's family D Victor's dinner Answer: B Victor's evening Question:
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output: The letter is mainly about _ .

input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: Today is November 8th. It's Gina's birthday. She is twelve. Jim, Kate and Bill are her friends. They want to buy some presents for Gina. They go to the store near the school. There are lots of things in the store. They buy a big cake , two boxes of color pencils, a pencil case and some nice books. They want to buy two dolls for Gina, but the dolls are too dear . Options: A a big cake B two boxes of color pencils C a pencil case and some nice books D A, B and C Answer: D A, B and C Question:
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output: They buy _ for Gina.

input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: One Sunday morning Mr Green and his child , Bill ,are in a big shop . Mr Green wants to buy a new blouse for Mrs Green . Bill likes oranges , so his father buys two kilos of oranges for him , too . Bill wants to buy some picture--books and colour pencils , too . There are many people in the shop . They are men and women , old and young . They all want to buy something there . Options: A empty B close C full of children D full of people Answer: D full of people Question:
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output:
The shop is _ .