DearXXX:
Congratulations to you !
I am glad to hear that you have performed brilliantly in the College Entrance Examination and successfully got the admission in the enrollment of XXX University,where you will be studying your major,English,there.
As far as I am concerned,it is the great efforts which you have made into the preparation of the final exam that results in this excellent achievement.I hope that you will show a better performance in the entirely new surroundings.
Congratulations again!Sincerely yours,XXX