题目内容：
根据以下材料，回答题Sports and games make our bodiesstrong, prevent us from getting too fat, and keep us healthy. But these are nottheir only use. They give us valuable practice in making eyes, brain andmuscles work together. In tennis our eyes see the ball coming, judge its speedand direction and pass this information on to the brain.The brain then has todecide what to do, and to send its orders to the muscles of the brain, legs andso on, so that the ball is met and hit back where it ought to go. All this musthappen with great speed and only those who have had a lot of practice at tenniscan carry out this complicated chain of events successfully. Sports and gamesare also very useful for character-training. In their lessons at school, boysand girls may learn about such virtues as unselfishness, courage, disciplineand love of one's country, but what is learned in books cannot have the samedeep effect on a child's character as what is learned by experience. Theordinary day school cannot give much practical training in living because mostof the students' time is spent in classes studying lessons. So it is what thestudents do in their spare time that really prepares them to take their place insociety as citizens when they grow up. If each of them learns to work for histeam and not for himself on the football field, he will later find it naturalto work for the good of his country instead of only for his own benefit.
( ) Which ofthe following is NOT mentioned in the passage? Sports and games_______. A．make usphysically strong
A．make us physically strong
B．keep us mentally strong
B．keep us mentally strong
C．train us to be good citizens
C．train us to be good citizens
D．take time
D．take time
参考答案：
答案解析：