Who can teach me some tips for parents to ask for leave from their teachers?

I can't come back when I'm on business.

Let your wife or husband leave.

The poor grades of children disappoint you and you don't want to go.

You happened to visit your parents that day.

You are not feeling well or in hospital, so it is not convenient to go.

Call; Send a message; Send a leave of absence; Talk to the teacher face to face; Acquaintances familiar with the teacher take time off instead of parents (it is recommended to send text messages)