Question

What was the commotion that franz anticipated in the classroom?

Answer 1

Usually, when Franz entererd the calssroom, there was a great buzz of sound at the opening and closing desks in the classroom.

This sound was like a commotion for him.

On that specific day also he anticipated the same commotion while entering the classroom.

However, on that particular day the classroom was quiet, which was a strange thing. 

Answer 2

hope you like my answer ....

Franz anticipated that usually there was a great bustle of sound during opening and closing of desks in the classroom which was like a commotion to Franz . but on that day he noticed that the classroom was and usually quite.