Bloopers in the writing task
To whom it may concern, (perfect)
*Hello, my name is Luke Skywalker ........
*Too informal / Is this relevant? Your name is at the bottom of the letter.
*XXX is on TTO ( XXX studies in the bi-lingual education stream, so his English is excellent, furthermore, he has his Cambridge First Certificate )
*not very clear
Best wishes (use "Yours faithfully" if you started with "To whom it may concern," )