Would you please revise this short introduction?
Mr. Headmaster, teachers, fellow-students, I have the honor and pleasure to welcome you to our celebration.
May I say in particular how very pleased we are that so many parents are able to be with us on this occasion?
We welcome your interest and the considerable help which so many of you give so generously in all sorts of ways to ensure the smooth running of our school community.
What then are we celebrating today? The answer, in brief, is the end of the academic year.
Thanks in advance.
It's perfect as is.