英语书面表达英语作文 Kate准备下星期举办自己的生日晚会,并邀请你参加.但你下星期有自己的安排,请你发挥想象,写一封回

Dear Kate:
How are you?I'm very sorry than I can't go to your bithday part.I feel bad too.But I really can't.
Next week I have to stay for a math test and English test.And I need to do homeworks.Tomorrow I have to babysit my sister.
This week i will very busy.Thanks for you asjing.I am very sorry.
yours friend XXX
这可是我一字一字打出来的,选我吧~

Dear Kate,
I am very happy to receive your invitation for your birthday party. however, I have to go with my father next week to visit my grandpa, who is now living in another city.I am sorry.