не пишите на столах и следите за те

не пишите на столах и следите за тем, чтобы всегда был мел у доски

Результаты (английский) 1:

do not write on the tables and make sure that was always chalk boards

Результаты (английский) 2:

Do not write on the tables and make sure that that was always the chalk at the blackboard

Результаты (английский) 3:

don't write on desks and ensure that there is always the chalk from the blackboard.