急求一篇80词左右的英语小作文假如你是David,你的同学Vince邀请你去参加他家的农场（farm）,但你因为太忙而不

Dear Vince;
Thank you for your asking.I'm sorry I can't come to your farm.I'm really busy.I'm visiting my grandparents after school.And I'm help my father work in the garden on Saturday morning,in the afternoon,I'm shopping with my mother.On sunday morning,I have to study for the physics test,and I'm gonging to the concert with my friend.I will come next time.
LOVE David

Today is Friday, after school you are going to visit grandparents. The next morning she helped her father in the garden had to work, go shopping one afternoon and my mother. Sunday morning in preparation for the physical test in the evening with friends go to a concert.