Dear Jeck:
My birthday is coming. I will have a birthday party. My mother will prepare a lot of decilious food. I will invite our classmates to my birthday party. I think we will have a wonderful time. I would like you to my birthday party this Saturday. It will start at six o'clock p.m. in the evening. Are you free on Saturday?
I would be very glad if you could come. Please let me know if you are coming by Friday.
Yours
Wu Wei