我要写一个英文请假条，高手翻译，谢了！！！

Question

由于单位有事，不能参加学习，特此请假，希望老师能批准！

Answer 1

Let me try to write one that I would submit in the United States. I am not going to give you a Chinese English.

Due to an urgent event at my work place, I cannot attend this study session. I am sorry for my absence and your understanding and approval will be appreciated.

Answer 2

I have to ask for a leave due to some business in my bureau.I am sorry that i couldn't join you with the study.
Thanks

Answer 3

Because the unit has the matter, cannot participate in the study, asks for leave specially, hoped teacher can authorize!
OK了

Answer 4

Because the unit occupies, can't attend a study, hereby ask for leave, hope the teacher can grant!

Answer 5

Dear professor:
I am so sorry to ask for your approval of my absence of your class,because I have some emergent things to deal with in the company.