A few years ago,on the fourth of September.I didn't remember what day it was that day.I went to school like all of other days.At five o'clock,I left school,and went back home.It was very unusual.Because it was no light in my home.So I went into the home,then Iheard a song meant'Happy birthday to you,Happy birthday to you ......' 'Oh,today is my birthday!'I felt very happy.I thought it was an unusual thing.