Pedro14,
I am surprised that your colleague crossed the student �s sentence out. This means that he thinks that this construction is incorrect.
It isn�t ... it �s perfectly acceptable!
Indeed, his �correction �: "I �m excited to go on holiday", is not one that I would use. If I were referring to the future, I might say: "I �m excited to be going on holiday to America next year", for example. But: "I �m excited to go on holiday" ... No!
However, I would be careful about teaching that �excited � is ALWAYS followed by the preposition �about �.
The Oxford Dictionary of English, printed 2006.
Gould was excited by these discoveries.
They were excited about the prospect.
The Oxford Collocations Dictionary, printed 2013.
Excited: Prepositions.
about: The kids seemed pretty excited about the holidays.
at: excited at the news.
by: He was puzzled but strangely excited by the commotion.
In my opinion, in this case, you are entitled to feel �flabbergasted �!
Indeed, as we sometimes jokingly say: "I bet your flabber has never been so gasted!!!"
Les Douglas
EDIT
https://lingohelp.me/preposition-after-adjective/excited-about-for-by-at-over/
This shows percentages of the use of Prepositions after the word �excited�.
65% ABOUT your birthday.
15% FOR this trip.
9% BY this.
4% AT the idea.
2% OVER the preview.
2% WITH this idea.
1% IN a strange way.
1% ON the first day.
1% TO see them again.
Les Douglas
