英文请假信主要需要说明请假原因,其次不能参加什么活动即可。格式如下:Respected leaders: Because I * * * * reason, will not be able to * * * * *, please lead to give care. Sincerely yours Ceremony例如:Dear miss morgan, I'm very sorry to inform you that i will not be able to attend the history lecture tommorrow afternoon because i have to meet with my uncle who will be arriving from france. i have to go to the airport and bring him to my house because we haven't met for many years. however, i would of course not like to miss the lecture, so if you have the recording of the lecture, please let me know because I want to listen to it very much. thank you 。 yours, lihua