This post pulls together exemplar answers, as written by students and teachers. Many of them are written in different circumstances, and some of them may be for slightly outdated media products, but all of them should be useful when it comes to getting inspiration for structuring your own answers.
The revision guide has several examples
Lots of student examples for lots of industries
Lots of teacher examples of introductions for different industries
Newspapers
Teacher and student exemplars from 2018
Teacher and student exemplars from 2020
Music video
Teacher exemplar answer for an unseen Tyler, The Creator video
Magazines
Student exemplar answers about Woman and Adbusters
TV
Lots of teacher and student exemplars for Humans and Les Revenants