单选题 .  (非英语类学生必做，英语类学生不做。)
    A schoolboy's life is in preparation for the real battle of life. h is also     1    of differences and interests. One of the     2    important parts of a schoolboy's life is to get     3    knowledge and good mind-training as he can. His     4    business in school is to learn. He     5    to read the book he is     6    in the classes. He has to do the homework set to him.     7    part that     8    a schoolboy's life is the school discipline. At school there are     9    rules     10    . This strict discipline is very     11    for him when he     12    the society to     13    a living. It teaches him some very necessary virtues on the road to a     14    life.
    School is a place for a schoolboy to learn what the social life is     15    .     16    in the classroom and the playground, he has to catch up with his fellows and not members of his family.
    He cannot behave     17    he does in his home. He is no longer a spoiled child, and his school fellows will not give     18    to his wishes. He soon gets his corners robbed off and learns the lesson of give-and-take, good manners, and thought for     19    .
    This is     20    the way when he has to carry himself in society.1.