从方框中选出适当的单词补全短文，使短文完整、通顺。

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(订阅) 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(出纳员).” 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?