你的朋友保罗邀请你周末去海边玩,但你有事不能去,写一篇80词的英语短文，委婉的拒绝朋友的邀请

把自己当成Mona
Dear Paul
Thank for inviting me to have a good time at seaside this weekend.But sadly,I can't suit your tastes.
In the afternoon, I am going to do housework with my mother. Because I am a good girl, I am helpful at home. On Sunday morning, I am going to visit my grandparents with my parents. In the afternoon, we are going to the park together. Because there is a kite show. And my grandparents likes making kites.
It's a,pity!
Looking forward to your reply.
Yours
Faithfully
Mona
望采纳，谢谢。