They aren't allowed to throw paper in the classroom, but they are allowed to throw paper in the dustbin.
They aren't allowed to run in the playground, but they are allowed to run during the Physical Education lesson.
They aren't allowed to go toilet during the lessons, but they are allowed to go toilet during the break.
They aren't allowed to use their mobile phone, but they are allowed to bring their mobile phone.
They aren't allowed to speak with their friends during the lessons, but they are allowed to speak with their friends during the break.
