Dear Sir，
I take liberty to write you in the hope that you might need someone to fill in for you 。 I feel that I am qualified as an administrator。
I am currently a student at college， I have over a month more to complete before I graduate。 My major is business administration。
I have excellent grades in all my subjects。 If you wish to look at these information it will be sent to you later。
I have worked at a trading company as a secretary， but I hope to seek more responsible employment。
I am 25 years old and very honest and dependable。 If you need someone with my qualifications， please let me know。
Thank you very much for your kind attention。
Sincerely yours