TOday was my grandpa's birthday.To make him happy,I decided to do something.I went to the cake shop to order a big birthday cake for him.I also invited my uncle,and aunt to come here
to celebrate Grandpa's birthday.At noon my relative came,and a birthday cake was ready on the table.I took out my violin and played some pieces of music for him.Grandepa was happy that I could do something to make him happy.