题目内容：

阅读下列短文，用合适的单词填空，每空只能填一个单词

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 __1._ were teenagers. They didn't come often；I forgot all the customers __2. two. One night a 15­year­old girl came in looking for __3.__ book with a boy. They seemed to find _4._ they wanted to buy. But __5._ they came to the counter（柜台），the girl found she was a dollar or two short to buy the book，and she pulled out all her money to prove it. She looked so  6. . Just then I remembered my discount(折扣)card and it was still active，so I told the girl __7._ to worry. I put in my code（密码），being happy that I could help them with this card. _8.__ the book in her hand she gave me a thankful smile，and then she and the boy got out of the store happily，leaving me feeling content，too. In fact sometimes a little thing can also make one's world beautiful.