Complex sentence: In order to be a student of Scutari High School each student must have at the very least an 8th-grade average of 80 percent, or else they will not be allowed to attend the school.
Split into simpler sentences: In order to be a student of Scutari High School, each student must meet a number of requirements. One of them is to have at the least an 8th-grade average of 80 percent, or else they will not be allowed to attend the school.