What if I need to repeat a required course, or have not taken some required courses in previous term(s)?

You need to enroll the courses by yourself during the enrollment period. Take note that UG students can only repeat course in case of failure, they cannot repeat a course to improve grades.

For PG courses, only two courses (excluding audited courses) in a postgraduate program may be retaken, and unless otherwise specified, each may be repeated only once. The new grade obtained at the second attempt will replace the previous grade in the calculation of the grade averages.