Problem: 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:

A: Why were the synthetic balls expected to be used in NBA according to the text?

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: My grandfather is a teacher. He is the head teacher of a school for boys between the ages of thirteen and eighteen. I know that he is a kind man, because he gives me presents , and let me sit on his knees , and tells me stories. But I believe the boys at his school are afraid of him. At school, when he walks into a room full of boys, they will be quiet at once . When he looks at a boy with a certain look in his eyes, that boy's face goes red, and looks down at his shoes. If a boy brings careless work, my grandfather will pick up the boy's book and throw it across the room, shouting , "Do it all again, and bring it back the first thing in the morning!" if the boy is late, or if he forgets to bring the work, he has to do it again, and again and yet again. Options: A my poor work B the work that the boys can't do C his students' careless work D the most careful work Answer: C his students' careless work Question:

A: My grandfather does not like to receive _

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: For 21 years,Georges Bwelle watched his ill father traveling to hospitals,which could not offer him all necessary help. Jamef Bwelle suffered only a broken arm at first,but it finally developed into a hematoma. That would affect him for the rest of his life. Bwelle spent years taking his father to overcrowded hospitals. It was not easy. They would leave home at 5 a.m. and ran to the hospital to be the first. There were a lot of patients. Some people could die because they were waiting. The situation hasn't changed much since Bwelle's father died in 2002. In Cameroon,there is one doctor for every 5,000 people while in the United States there is one doctor for every 413 people. And even if they could see a doctor,many Cameroonians couldn't afford it. When he saw his father and so many of his countrymen suffer,Bwelle decided to do something about it. He became a doctor himself.And he started an organization,ASCOVIME. It travels into the countryside on weekends to provide free medical care. Since 2008,he and his group of volunteers have helped nearly 32,000 people. Almost every Friday,his team jam into vans and travel to villages in need. In each trip they receive 500 people. Patients come on foot from 60 kilometers around the village for free treatment. The next morning,the team will do simple operations in a schoolhouse,town hall or home,and work into the early hours of Sunday morning. On Sunday,the team heads back to the city,tired but proud of their work. They know that their help can make a world of difference to those they help. For his devotion to his country and people,Georges Bwelle becomes one of the 2013 Heroes voted throughout the world. Options: A patient and confident B polite and helpful C kind and hardworking D lively and creative Answer: C kind and hardworking Question:

A: We can reach the conclusion that Bwelle and his team are _ .

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: Today the word friendship has been used so often that it has lost its meaning. Some jokingly or seriously say that friends are made to be used. It makes me very sad. True friendship doesn't mean that when you need your friend's help,you will treat him to dinner,and when you have to protect yourself,you will put your friends in a difficult situation. In fact,true friendship is the communication and understanding of the hearts . True friendship is like water. Compared wish decent wine,water is tasteless,but is of great help when we are thirsty. True friends don't need to be with each other every day,but are connected in heart every minute. True friendship is like medicine. Though it is bitter,it cures your illness. True friends give you some suggestions even if they know you would not take. They criticize you when others have a good word for you,not because of envy but worrying that you may lose your cool head. True friendship has nothing to do with fame,power or money. True friends would often watch you silently far away when you are _ ,but come to you whenever you need their help. You're not his stepping-stone to success,but are his crutch to live through difficulties. True friends make you complete. Many persons go along with you through your life-your parents,your spouse,and your children,who take care of you and make your life happy. However,you still need someone who understands your thoughts and souls. Without them,you are likely to be unhealthy in spirit. True friends stay in your heart,rather than at your side;they know you more than yourself,and try to better you. Once you have found such a true friend,do treasure him. If your true friend disappears,how can you make the sound of your heart understood? Options: A it has no taste B it is important to our life C it is easy to get D it stays with us every day Answer: B it is important to our life Question:

A:
The writer speaks of water because _ .