When I was 19，I had got a job in my local bookstore. Living in the large city，I usually saw many strange customers(顾客)，most of  48  were teenagers. They didn't come often；I forgot all the customers except   49  : a 15-year-old girl and a boy. One night they came in looking for a book. They seemed to find what they wanted to buy. But  50  they came to the counter（柜台），the girl found she was a dollar or two short to buy the book，and she took  _51  all her money to prove it. She looked so disappointed. Just then I remembered my discount card and  52  was still active，__53  I told the girl not to worry. I put in my code（密码），being happy that I could help them with this card. With the book in her hand she gave me  54  thankful smile，and then she and the boy got out of the store happily，leaving me feeling content，too.  55  fact, sometimes a little thing can also make one's world beautiful.

When I was 19，I had got a job in my local bookstore. Living in the large city，I usually saw many strange customers(顾客)，most of  48  were teenagers. They didn't come often；I forgot all the customers except   49  : a 15-year-old girl and a boy. One night they came in looking for a book. They seemed to find what they wanted to buy. But  50  they came to the counter（柜台），the girl found she was a dollar or two short to buy the book，and she took  _51  all her money to prove it. She looked so disappointed. Just then I remembered my discount card and  52  was still active，__53  I told the girl not to worry. I put in my code（密码），being happy that I could help them with this card. With the book in her hand she gave me  54  thankful smile，and then she and the boy got out of the store happily，leaving me feeling content，too.  55  fact, sometimes a little thing can also make one's world beautiful.