熱心網友

I am afraid that I've got to let you down. My shedule is full up to Sunday.

熱心網友

I'm afraid that i will have let you down,because i have an appointment on Sunday.

熱心網友

i am sorry to say,in my shedule i have no time till this sunday

熱心網友

I hope you will not be disappointed as I have been fully ocupied up to Sunday.