我写的请假条对吗？

didn't went 改为 didn't go
we 改为 our family
I'm sorry about that 改为 I'm sorry for reminding you so late

最好把on friday换成last Friday
还有I'm sorry about that最好不要用，因为通常表示我很遗憾‘‘‘

wrong
my daughter XXX couldn't go to shcool on friday,as we have to go back to China for vacation.I wanna ask for a leave and your agreement would be important ,thank u

My daughter XXX didn't go to school Friday, due to our returning to China vacation/because we went back to China for vacation. I'm sorry for that.