One day, on my way home, I jumped on a train. There was only one   1   seat, but there was a dirty man sitting next to it.   2  the train was very crowded, no one would sit there. I went up, 3   next to him, looked at him and smiled. The look of shock on his face is a look that I will never   4  .  He was   5   that someone would sit next to him when all the people had done their best to avoid him so far. Then I saw shame on his face.

He 6 said anything or tried to get closer. All he did was looking out of the window and occasionally(偶尔) 7 me with a smile. When the train arrived at his 8 , he stood up and then, right before going out of the door, he 9 and said to me with a big smile, "Have a good day!" I will never forget the 10 on his face. All I did was smiling and that was the reaction(反应) I got. It was amazing!