Make a rule with "eat in bed"
You musn't eat in bed.
When you're driving, you .... use the cellphone.
musn't
You ... feed the dog. I've already done it!
don't have to
He's a brilliant student. He ... work hard to get good marks.
doesn't have to
Make a rule with "stay at home in quarantine"
You must stay at home in quarantine.
You ... go to the check-in desk if you have checked-in online.
needn't
You ... talk in the cinema
musn't
You ... listen to the teacher's instructions.
must
Smoking in the museum it's forbidden! You ... smoke outside.
must
I've already phoned Jane. You .... do it again.
needn't
You ... eat that bread. It's a week old.
musn't
You ... throw rubbish here!
musn't
You ... take your shoes off if they are clean.
needn't
You ... pay the rent today! don't forget
must
In football, you ... touch the ball with your hand.
musn't
You musn't tell anyone about the party. It's a surprise.
musn't