Classroom

It was ordered that the classroom be put in order.

Keep your classroom clean.

The classroom was full of pupils.

The classroom has finally warmed up.

Line up the desks in the classroom.

There is a tall man in the classroom.

Take off your hat when you enter a classroom.

As soon as he entered the classroom, our teacher burst into angry speech.

I found that I had left my umbrella behind in the classroom.

There was an expensive camera left in the classroom.

Secondly, preserved railways are not 24/7 operations. There are closed seasons where they can be turned into open-air classrooms.