It is my great honour to recommend XXX（妳的名字） to you, as she/he was one of my best students in our department.
XXX has been attending my English classes in the Department of XXX for more than 3 years and the deep impression she made on me has not faded in the least. She/He is very intelligent, honest, creative, articulate, outgoing and adaptive person. She/He is extramely fancy about learning English and always performances positively in my class. Her/His high academic achievement speaks for itself.
I am certain that XXX would make great contributions to your company，and I strongly recommend her for the position.（如果是出國讀書的推薦信就說i am certain taht XXX would be qualified for the entry requirement of your University）, Please do not hesitate to inquire further if I can be of help to you.
Sincerely,
XXX(老師的名字,簽名然後清楚的書寫)