School and study

In our country school attendance is compulsory from the age of 6 or 7 till 15 or 16. School are mainly state schools, but there are also some private and church schools. Attendance at state schools is free of charge and provide the same kind of education with the possibility of enrolling at universities.
Primary education starts at basic schools and lasts now 9 years. Children learn there writing, counting, reading, Czech language and literature, etc. Secondary education lasts usually 4 years. The types of secondary schools are following: secondary grammar schools, secondary special schools for example technical schools, schools of economic, agriculture schools, music schools, schools for health workers etc. and vocational schools which prepare young people for practical professions. Tertiary education starts at the age of 18 or 19 and lasts usually from 4 to 6 years. Students may attend various universities or colleges for example Technical College, Law Faculty, Medical Faculty, School of Economic etc.
In Britain all children and young people between the ages of 5 and 16 must get full-time education. They receive their education at schools supported by public funds or at private or church schools. The principal examination at about the age of 16 is the General Certificate of Secondary Education. More than a third of young people receive some form of part-school education. Those, who want study at the universities, can choose from more ones and the most known are in Oxford and Cambridge - they are the oldest ant the most famous.
In the USA there is not a national system of education. Each of the 50 states has its own laws regulating education. Every child gets minimum 13 years of education. The goal of studies at secondary schools, which are also called "high schools", is to get a high school diploma. Students should take on average 17 or over 20 units during their studies. Marks in most US schools are A, B, C, D, E.
I attend Commercial High School. The education here lasts 4 years and it ends with graduation exam. We have to pass an obligatory exam in Czech, in Economic, in Accountancy and in one subject from three ones which we can choose. The subjects are Math, English, German. I have chosen English.