your address
month, date, year
receiver's address
dear ...,
i am extremely pleased to hear from you./ to see your advertisement for the position in .... and i would like to write a letter to tell you that.../ i am confident that i am suitable for the kind of the job you are advertising..../ i feel i am competent to meet the requirements you have listed. on the one hand, .... on the other hand, .... i am enclosing my resume for your kind consideration and reference.
i shall be much obliged if you will offer me a precious opportunity to an interview. i will greatly appreciate a response from you at your earliest convenience/ i am looking forward to your replies at your earliest convenience.