Предложения с предлогами " не так ли "? на !

весь текст написан в present simple- глаголы я выделила

people in our country have the right for education. it is our constitutional right. but it is not only a right, it is a duty, too. every boy and every girl in russia must go to school, that is, they must get a full secondary education. so, when they are 6 or 7 years old they begin to go to school. there are thousands of schools in russia. there are schools of general education, where the pupils study russian (or a native language), literature, mathematics, history, biology, geography, music, arts, foreign languages. there is also a number of specialized schools, where the pupils get good deep knoledge of foreign languages, or maths, or physics. after finishing 9 classes of the secondary school young people can continue their education at different kinds of vocational or technical schools or colleges. they don’t only learn general subjects, but receive a speciality there.  professional trainings makes it easier to get a higher education. as for high schools, there are a lot of them in our country. some of them train teachers, others - doctors, engineers, architectors, actors, etc. many institutes have evening and extra-mural departments. that gives the students opportunity to study at an institute without leaving their jobs.