The system of schooling in Morocco

The system of schooling in Morocco, as in all the countries of the world, is made up of many stages, but with some differences. There are six years of primary school, three years of secondary school, and then three years of high school. The third year of secondary school is directive, the student should choose the major he/she likes, whether scientific or literary. In the second year of high school we take a regional exam.  In the last year of high school, which is called Bac, we take another exam, which is national. The final results of the national exam are added to the marks of ongoing progress (grades?) and the regional exam. The result is on a scale of 20.  So, if the student got a high grade, like a 17/20, he/she can study (after an entrance examination) medicine or attend one of the schools of engineering. The study of medicine takes 7 years and the study of engineering takes 5 years. On the other hand, if the student got an average grade he/she may attend the university to study letters or sciences. After 3 years he/she gets a BA or BS. After that, again if the student has good grades, he/she takes an entrance exam for graduate school.  If he/she passes it he/she studies 2 years for a masters degree. If he/she wants to continue his studies, he/she takes another entrance exam. If he/she passes it he/she may study another 3 years for a PhD degree.

(The use of "he/she" frequently can feel awkward.  It is acceptable to just use "he", even when you mean both genders.)