We are on a plane!! You ____ smoke here! Are you crazy?!
mustn't
I think you _____ study more if you want to pass the exam. Right now, you're not doing enough.
should
You tell ____ anyone what I just told you. It's a secret and Anna will kill me if she finds out!
mustn't
Politicians _____ be completely honest and transparent. Sadly, not many of them are because there's no law to command it.
should
Mrs Park can't see well, so she ___ wear glasses when she wants to drive a car.
must / has to
When a teacher gives you a homework, you ___ do it. It's in the school rules!
must / have to
If you want to know my opinion, you ____ return the dress. It doesn't look good on you.
should
Sorry, I'm boke so I can't lend you any money. You ___ borrow the money from someone else.
must / have to / will have to
The museum is free, so you ____ pay to get in. But you can give them some donation if you like the place.
don't have to
You _____ try to help him even if he asks. He has been nothing but terrible to you...
shouldn't
Well, my sister isn't working tomorrow, so she ____ get up early.
doesn't have to
You ____ go there! It's dangerous at this time of year. You might die!
mustn't
You ____ drive a car! You're only thirteen!
mustn't
Oh no! I think I broke Peter's bike! What ____ I tell him?
should