When I was 19 I had got a job in my local bookstore. Living in the large city I usually sa

问题补充：

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 of1 were teenagers. They didn’t come often；I forgot all the customers2two. One night a 15-year-old girl came in looking for a book with a boy. They seemed to find what they wanted to buy. But 3 they came to the counter（柜台），the girl found she was a dollar or two short to buy the book，and she took

4 all her money to prove it. She looked so disappointed. Just then I remembered my discount card and5 was still active，so I told the girl 6 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 me7 thankful smile，and then she and the boy got out of the store happily，leaving me feeling content，too.8 fact, sometimes a little thing can also make one’s world beautiful.

答案：

解析：

【小题1】这是一个定语从句，构成“名词 / 代词 + 介词 + 关系代词”结构，关系代词在从句中作主语，且是人，故只能用whom

【小题2】这里表示除了两个顾客，其他的顾客我都忘记了，故用but/ except

【小题3】这是一个时间状语从句，表示“当……时候”，故用when

【小题4】take out 是固定短语，意思是拿出，取出

【小题5】指代前面的“my discount card”，故用it

【小题6】固定句型：tell sb. not to do sth，告诉某人不要做某事.

【小题7】表示泛指“一个微笑”，且“thankful”首字母发音是辅音，故用不定冠词a

【小题8】in fact固定短语，意思是事实上。