Dear Henry,
I am sorry that I can not attend your birthday party.
I am very busy in tht day.First, I have to go to help my cousin review his worksheep for his test in tomorrow .And then i need to help my mother prepare the food for the dinner because she's going out for the business.The
last thing i need to do is return the book to the
library or i will be fined.So i do not really have time.
But anyway,happy birthday.And enjoy yourself.
Best wish
Jane