用英文写请假条，追加50赏分。

Dear teacher:
My mother is sick but unfortunetely my father is away on his business this very moment.So I have to ask for leave for two days to take care of mum at home.I will be back on time.thank you!
sincerely your student:Yuyue

I'm Yunyue .These days ,my father is away on business and go abroad .What's more ,my mother is ill.Because I must take care of my mom,I want to ask for a leave .I will come back in two days.

考虑到假条应该是初中水平，不使用高级词汇
dear teacher,
my mother is now ill and my father has gone abroad on business so i want to ask for 2 days' leave to take of her.
yours,
yunyue