听第5段材料。回答第12至15题。
I am a fairly ordinary young man，and my life has so far been rather quiet．I was born eighteen years ago in a little town in Ohio where my father started to practise medicine．I was the first of three children，and my younger brother，my sister，and I were close to each other，even though we had a few of the usual childish quarrels as we grew up together．I went through grade school without getting into any trouble，but in high school I began to get very proud when，as a student in
the second year．I became a member of the school football team．Ithought I was good enough to get by without studying，so I spent all my evenings watching TV
In my junior year I failed maths，and my father was more angry with me than I like to remember．I felt pretty bad about this，but it taught me a lesson，and in my senior year my grades were above average．
Now I aIn going to college and I am not going to let anything，even football．keep me from getting good grades．I believe I owe it to my father and mother to do the best work I can．They are making a sacrifice in giving themselves up to send me to college，and I intend to repay them with hard work．