Answer:
We were not having lunch at one o'clock today.
Explanation:
Using past continuous, you would arrange the sentence with the subject and the past tense of the verb using we and were.
You could either 1. discuss with the teacher(s) on how poorly he treats the classmates and try to find a way to get him to stop
or
You could try and talk to said bully about how is making the class feel with how he has been treating them
