to learn something by heart:
to memorize it
a mature student: a student who is older than average and who has usually returned to education after a period at work
masters degree: a period of study which often follows the completion of a bachelors degree or is undertaken by someone regarded as capable of a
higher-level academic course
to meet a deadline: to finish a job or task in
the time allowed or agreed
to play truant: to stay away from classes without permission
private language school: an independent school
run as a business concern
public schools: exclusive independent schools in the UK