题目内容：

When I was 14, I was hired for an after-school job selling subscriptions(订阅) for my hometown paper, the Houston Post. I was ____to some of the city’s worst neighborhoods to sell it from door to door. ____I was often struggling around after dark in bad areas searching for garage apartments, I was ____for the work.

It was a ____because people didn’t like a stranger knocking on their doors, ____a kid trying to get them to buy something. One time, a man ____his door heavily in my face and screamed in a(an)____voice, "I don’t want any damn paper!" I ____myself to knock again and eventually was able to tell him how great the paper was. I ____selling him a subscription. I was soon among the _____subscription sellers and, like other successful salesmen, was given____for training newcomers.

Around that time I started playing the harmonica and guitar. Before long I was playing in a____at chili cook-offs and other events. When I turned 18, I ____my attention on becoming a professional ____. I never lost sight of this dream. I’m sure my perseverance(坚持) came from what I learned from knocking on ____doors.

That ____helped me in many ways. Early in my music career I was ____in a legal dispute (法律纠纷)with a former manager. He tried to make me back off, but I ____.

Having all those doors shut in my face as a kid gave me the ____to stand up to this frightening figure. But this time there was one difference: I was the one saying no. And I ____.

1.A. sent    B. exchanged    C. forbad    D. warned

2.A. Even though    B. When    C. As though    D. Because

3.A. fearful    B. grateful    C. terrible    D. careful

4.A. problem    B. trouble    C. challenge    D. fortune

5.A. mostly    B. generally    C. naturally    D. especially

6.A. pulled    B. opened    C. pushed    D. shut

7.A. soft    B. angry    C. happy    D. sad

8.A. asked    B. forced    C. advised    D. told

9.A. ended up    B. hold up    C. picked up    D. gave up

10.A. rich    B. bottom    C. fast    D. top

11.A. responsibility    B. condition    C. freedom    D. time

12.A. band    B. concert    C. club    D. party

13.A. caused    B. changed    C. focused    D. aimed

14.A. director    B. teacher    C. musician    D. manger

15.A. sellers’    B. friends’    C. neighbors’    D. strangers’

16.A. experience    B. memory    C. incident    D. accident

17.A. crowded    B. locked    C. led    D. called

18.A. agreed    B. accepted    C. refused    D. resigned

19.A. weakness    B. strength    C. rudeness    D. kindness

20.A. won    B. lost    C. made    D. had