题目

I used to live selfishly, I should admit. But one moment changed me. I was on my lunch break and had  41 the office to get something to eat . On the way, I   42  a busker(街头艺人)，with a hat in front of him. I had some   43   in my pocket, but I would not give them to him, thinking to myself he would   44  use the money to feed his addiction(沉溺于…上瘾) to drugs or alcohol. He   45 like that type­—young and ragged.   46   what was I going to spend the money on? Only to feed my addiction to Coca-Cola or chocolate! I then   47  I had no right to p 填一填． 一台电脑八千六百四十元，写作(　　)．