I should be grateful...

In class 21-Red, the subject geography was on the route.

Here Mister Gram, a Halfing was standing on the stage. He took his seat and said, 

"Okay, boys! We decided to make a little change in our class routines.

It's been decided to give you all three days of free time for the rest of the day.

The four classes before the rescues will be for studies whether we teachers will be explaining the basics of the period while the rest will be free here you all can discover whatever you like.

Fly free like a freedom bird to discover our grand school.

On the contrary, you all may leave in or out without permission and can even roam wherever you like.

You can even call your friend from neighboring classes or stay alone the way you like…

And…"