阅读下列短文，从每题所给的四个选项 （A 、B 、C  和 D ）中，选出最佳选项。

    George Bernard Shaw，the greatest and funniest British dramatist(剧作家)of the first half of the 20th century，was born in Dublin，Ireland，on July 26,1856.His early life was not happy. His father was a selfish man who drank too much and could not support his family properly. His mother was a disappointed，unhappy woman who found more pleasure in studying music than in her children. Bernard and his two sisters received little love and attention from their mother while they were young. At the age of ten Shaw entered school. At first he was the best student，but soon he was at or near the bottom of his class.

    Although he did not like school，Bernard was a good，bright，curious student. His lifelong interest in everything from music and art to machines and medicine began from school life. The interests of this tireless schoolboy were literature and music. He often entertained(使快乐)his classmates with stories he read.

    Early at the age of fifteen，he went to work in an office. He did well as an office clerk，but after five years he decided that he wanted to be a writer. He left Ireland and went to London，where he began to write seriously. Seventy-four years later the great dramatist died.

—________I can't afford to pay my bills，let alone buy a new apartment．(   )

          One day I pulled up to my apartment building and noticed there was a father and daughter1some things from a moving truck. Normally I'm shy away from contact with2That particular day, though, something was in me: I can't explain3, but I felt like I should just help these people, even4omething as seemingly unimportant as unloading a truck. So I5and introduced myself, welcomed them to the town, and asked them to give me a(n) 6 to put some proper shoes on. After I had flip－flops(夹趾拖鞋) on, I went over and helped them move all of their7into the apartment.

After we finished, we talked some and I got to know my new8. It might seem unimportant, but it seems like people are less9and friendly to their neighbors these days: I wanted to10that, at least in my small11block, So we did talk, and they're from Florida, just like me.

          At that12time in my life, I was going through a really difficult 13with my girlfriend of 7 years. I didn't feel like helping anyone or doing anything 14, but I figured why not? And I'm glad I did. Also, as15would have it, their daughter is my age(college student) and we each had a mutual(相互的) 16 in one another. This developed into a friendship, and in the coming months. probably more.

          The 17was the act itself, though. I got to know my new neighbors and made some new friends in the18. And I felt really good about it. Since then, I've tried19my comfort zone to perform other unplanned acts of 20. So far, so good. I'd encourage everyone else to do the same!

-______．I just do it for a living．(   )