Should/shouldn't, must/mustn't

Some students in my class bully me. You _____ tell an adult.

You__________ help your friends.

You _______ click the pop-up. 

You _______ share your personal information.

You ______ watch TV all the day. 

You ______ buy online without parents. 

You ____ listen to your teacher.

You _____ do your homework.