Of course it's fake, and I didn't intentionally skip class. Because an epidemic prevented me from returning to school normally. And it is unrealistic to go back to school right now, which may bring trouble to the school.

If a student asks for leave due to illness with the diagnosis certificate of the school hospital or the hospital at or above the county level, and the sick leave is more than 1 month, he/she shall apply for it and be approved by the class tutor or postgraduate tutor, department head, parents and counselors.