input: OPTIONS:
- a synthetic ball takes in water faster than a leather ball
- a leather ball is more difficult to make than a synthetic one
- a synthetic ball is more expensive than a leather ball
- a leather ball may increase its weight during a game Now, answer this question: Read the following article and answer the question. 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. Question: It can be inferred from the text that _ . Answer:
A:
output: a leather ball may increase its weight during a game

Read the following article and answer the question. Article: On a sunny morning, children in Ganale stood in front of their new school and expressed their thanks to Tina Charles. Tina Charles, a woman member of the WNBA, plays for the women's basketball team of America. She understands the importance of education and of giving back to others. So the WNBA star made sure to support a school in an African village when she heard about the chance to give money to it. Charles first knew about the chance while she was in a college. But she didn't have the money to help out at that time. After she played for the WNBA, she made much money. With the help of charitable organizations , Charles donated $32,000 to the school. Charles did the charity work while playing basketball and getting ready for the London Olympics. She played for the team that had won the gold medal in the last four Olympic Games. And they got the fith gold medal in London. Charles always works hard on both working for the country in the Olympic Games and giving back to others."The more I give, the more happiness I get."she said. Question: What's the Chinese meaning of WNBA? Answer:

OPTIONS:
- .
- .
- .
- .

Answer: .

Problem: OPTIONS:
- our brains will become smaller
- our brains will become bigger
- our memories will become worse
- our memories will become better
Q: Read the following article and answer the question. Article: You can't remember who sings a certain song from the 90s. You Google it. You're arguing with a friend about who played Mickey in The Goonies. You solve the problem by Googling it. You don't know the way to that new restaurant. You Google Maps it. We hold the answers to about all of life's questions in our hands today. But that means our brains are feeling free to take some rest. According to the Daily Mail, our growing reliance on the Internet for fact checking is making our memories worse. Scientists at Harvard University found people now regard Google and other search engines as an outside part of their own brains, rather than a tool. Writing in the Journal Scientific American, Harvard psychologists Daniel Wegner and Adrian Ward warn that people who believe their memorable facts that are saved online are much worse at remembering them. "The Internet is also unlike a human memory partner; it knows more and can produce the information more quickly, You can find almost all information today easily through a quick Internet search. It may be that the Internet is taking the place of people's memory." In a series of tests, researchers found it was easy for people to remember information well if they believed it would be deleted. Those who thought it was stored on a computer were more forgetful, even if they were asked to keep the information in mind. Question: According to the passage, if we depend on the Internet for fact checking, _ . Answer:
Answer: our memories will become worse

Problem:OPTIONS:
- Because he didn't go to school.
- Because he didn't have any money.
- Because he didn't have a warm family.
- Because he didn't like the place he lived in.

Read the following article and answer the question. Article: Bob was a homeless boy who lived in a house for homeless children. He always felt lonely and sad. He felt he was a nobody in this world. One day, he said to Mr. White, head of the house, "Why did my parents bring me to this world? What value do I have now?" Mr. White gave Bob a stone and said to him, "Take it to the market, but don't sell it no matter how much money they pay you. Bob took the stone to a market called Green Market. A man wanted to buy it for 100 pounds, and Bob wouldn't sell it. Later, another buyer would pay more for the stone, but Bob still wouldn't sell it. The next day in Center Market, the people would buy it at a much higher price. But Bob wouldn't sell it. The third day, Bob took the stone to Street Market. This time, the people there offered a price which was ten times higher than that in Green Market. But Bob wouldn't sell it. Bob couldn't understand. He asked Mr. White, " Why did they pay me so much money for just a stone?" " Even for a stone, if you think it valuable, it will be valuable, " said Mr. White. ,. Question: Why did Bob always feel lonely and sad? Answer:
****
A: Because he didn't have a warm family.

Read the following article and answer the question. Article: The students were having their Chemistry class. Miss Hua was telling the children what water was like. After that, she asked her students, "What's water?" No one spoke for a few minutes.Miss Hua asked again,"Why don't you answer my question?Didn't I tell you what water is like?" Just then a boy put up his hand and said, "Miss Hua, you told us that water has no colour and no smell. But where to find such kind of water?The water in the river behind my house is always black and it has a bad smell. "Most of the children agreed with him. "I'm sorry, children."said the teacher,"Our water is getting dirtier and dirtier. That's a problem. Question: A boy said,"The water in the river behind my house is always _ ." Answer:
OPTIONS:
- clean
- black
- white
- clear

Answer:
black