Must vs should vs have to

You ___________ smoke. It's not good for your health. It's a bad idea

They __________ use a dictionary. They can ask the teacher

Students __________ say bad words. It's not allowed

Susan __________ wash dishes. It's her housework

Robert __________ help his mom cook. It's a good idea since his mom has a broken finger

We _________ enter in there. It's only for teachers

Rebeca ______________ to study for her exam. It's important

Victor __________ have to go to school on Sunday

Teachers ______________be nice to students. It's always a good idea!

You ___________ treat your classmates bad. It's not a good idea.