How to express "school begins" in English?

The English translation of the beginning of school is the beginning of school

School begins.

The semester begins.

Extended data 1. The party school starts today, and I wish it all the best.

The party school starts today, and I celebrate the success of this school.

School starts in September.

School starts in September.

The school year begins when the school starts in September.

When the school starts in September, the school year begins.

School will start next Monday.

School starts next Monday.

They will be used from the moment the school starts, through recess, through lunch time, until the day when the headmaster lets the school stay open.

From the beginning of school, to the break, lunch break, until the principal announces the end of school, the computer will play a role from beginning to end.