I am writing to you to recommend…for…
I take great pleasure in recommending to you … as …
I would like to present… for your consideration in your search for…
With reference to your requirements(要求), I shall, without reservation(毫无保留), recommend…as an ideal candidate.
I am confident/ convinced that… I strongly recommend him to you with no reservation.
Therefore, I do not hesitate to recommend her as an ideal candidate for the post you advertised.
Therefore, I do not hesitate to recommend … as the right person for your consideration.
Dear Prof. Smith,
I am writing to recommend to you Miss Liu Ming who wants to pursue her graduate study for the Master’s Degree under your supervision(监督、管理).
Miss Liu Ming was one of my classmates in Tianjin University. She was an excellent student in our university as can be seen from her straight A grades on all subjects. After graduation she worked in Tianyi Biological Company for three years, which considerably added to her practical experience(实践经验).
I think with her intelligence, diligence and rich experience, Miss Liu Ming has great potential in the field of pharmacology both theoretically and practically. Therefore, I recommend her to you with no reservations(毫无保留).