watch youtube during the online class
You mustn't watch Youtuve during the online class
run in the school corridor
You mustn't run in the school corridor
do homework
You must do homework
What's he going to do?
He's going to take a shower.
What is he going to do?
He's going to watch TV
eat during the class
You mustn't eat during the class
Listen to the teacher
You must listen to the teacher
What are they going to do?
They are going to play video game.
What's he going to do?
He's going to do a jigsaw.
shout
you mustn't shout
What are they going to do?
They are going to go to the beach.