поставить THE или A ____ professor is not____ teacher in___ secondary

The professor is not a teacher in the secondary school, but has a highest academic position in the university. A lecturer is the university teacher. Lecturers - and professors - give a lectures. Students in Britain usually have the tutor who gives them a advice and teaches students in a small groups. You graduate from university with the degree. If you do the postgraduate work, you will have a supervisor to help and advise you.

A professor is not A teacher in THE secondary school, but has THE highest academic position in THE university. A lecturer is AN university teacher. Lecturers - and professors - give lectures. Students in Britain usually have A tutor who gives them  advice and teaches students in a small groups. You graduate from university with A degree. If you do A  postgraduate work, you will have A supervisor to help and advise you.