從方框中選出適當(dāng)?shù)膯卧~補全短文，使短文完整、通順。
    business, turn, excuse, line, else, hand, by, in,
    especially, nervous, if, who, because, leave, with
    Dear Editor,
     Last Sunday, I went to the post office to subscribe(訂閱) some magazines. I was there for half an hour and there was still a long 1 in front of me.
     My 2 came at last. I quickly got everything done, and was ready to 3 when someone came nearer to me. I looked up and saw him, old and thin, 4 a dirty coat which had been worn out. I could see easily that he was a migrant(移民的) worker. Instinctively(本能地) I stepped backward. I was 5 my new red coat.
     He told me he wanted to send some money home but didn’t know how to fill out the form. He asked me 6 I could help him.
     “But you can ask the cashier(出納員).” After these words, I froze into silence.
     “I have asked her. But I still don’t follow her instructions. Would you kindly help me?” Just then, my mobile phone rang. It was a(n) 7 to refuse him. I had my own 8 to do. Hopelessly and sadly, he gave up begging me and tried to find someone 9 who would lend him a 10 .
     As I stepped out, I became 11 about it. How could I refuse someone 12 was in need of help, 13 such an old migrant worker? Was it 14 he was poor and dirty?