Раньше, ученики должны были сдавать

Раньше, ученики должны были сдавать экзамен, по результатом которого ученики распределялись в английские школы работают по единой системы

Результаты (английский) 1:

Previously, students had to pass the exam, which evaluates students distributed in English schools operate on a single system

Результаты (английский) 2:

Previously, students had to take the exam, the results of which were distributed to the students of the English schools operate on a single system

Результаты (английский) 3:

previously, students had to pass the exam, the students are in the english schools operate on a single system