Dear __________,
My name is __________, and I am __________.I venture to write you a letter about __________.
The focus of the complaint is _________. For onthing,___________. For another,__________.Under these circumstances, I found / find it__________. Honestly speaking, _________. Inaddition,__________. All in all, there is still muchroom for improvement.
I do hope _________. Thank you for your timeand kind consideration.
Sincerely yours,
________