2, because there will be some students who don't go home during the New Year and teachers who are still working during the holidays. However, the school gates usually don't go in and out at will as usual, but are generally open with restrictions (such as closing early, etc.). ). And people and vehicles entering and leaving the school will be more strictly inspected.
3. Even if there are no teachers and students in the school, in order to do a good job in school security and prevent accidents such as fire and theft, most schools will not be completely closed.