One winter holiday,I went home by train.I was reading an interesting book while a voice said to me:”Would you please let me take your seat for a while?”I raised my head and found an old granny standing beside me.She looked very tired.I quitckly stood up and said awkwardly,”Sorry,I didn’t notice it.”The granny just thanked me again and again with a smile on her face.When I looked around,I saw all the passengers smiling at me for my good deed.