完形填空。 Ibelieve in my mother. My belief b

     I believe in my mother. My belief began when I was a kid, when I   1   becoming a doctor.
     My mother was a   2  . Through her work, she observed that   3   people spent a lot more time   4  
than they did watching television. She announced that my brother and I could only watch two or three   5   TV programs during the week. With our free time, we had to read two books each week from the Detroit Public Library and   6   written book report to her. She would mark them up with check marks and   7  
the important parts. Years later we realized it was a   8   to see her marks on our written book reports.
Mother was actually illiterate (文盲). Although we had no money,   9   the covers of those books, I could go anywhere, do anything and be anybody. 
     When I entered high school I was an A-student, but not for   10  . I wanted the fancy clothes. I wanted to hang about with the guys. I went from an A-student to a B-student and to a C-student, but I didn’t 
  11  . I was cool. 
     One night my mother came home after her several jobs and I   12   about not having enough Italian knit shirts. She said, “Okay, I’ll give you the money I   13   this week by rubbing floors and cleaning bathrooms, and you can buy the family food and pay the bills. With   14   left over, you can have all that you want.” I was very   15   with that arrangement. But once I got through   16   money, there was nothing left. I realized my mother was a financial genius to be able to keep a(n)   17   over our heads and any kind of food on
the table. I was also   18   that immediate satisfaction didn’t get me anywhere. Success   19   intellectual
preparation. I went back to my studies and became a A-student again, and   20   I realized my dream and I became a doctor.