For example.
Fever, physical discomfort and so on.
2. Students can take time off according to external reasons, such as taking a driver's license and a Putonghua certificate.
Students can take corresponding leave for family reasons, such as moving, getting sick at home and so on.
When students ask for leave from their teachers, the most important thing is to tell the truth. For example, because of family factors, they can directly explain the specific reasons to the teachers. If they are their own factors, such as illness, they should also tell the teachers clearly.