Jerry doesn't have to / mustn't get up early this morning. He isn't going to work.
doesn't have to
No thanks. I mustn't / shouldn't eat any more cake. I'm on a diet.
both
You mustn't / don't have to tell anyone what I've just told you. It's a secret.
mustn't
Living at home is great. I mustn't / don't have to do anything because my mum does it for me.
don't have to
You must / have to get a visa if you want to go to Cuba.
both
Jerry doesn't have to / mustn't get up early this morning. He isn't going to work.
doesn't have to
You ought to / have to pay a fine if you don't return your library books on time.
have to
It's Hana's birthday tomorrow. I mustn't / shouldn't forget to phone her.
mustn't
You mustn't / don't have to touch electrical things when your hands are wet.
mustn't
I think you should / must go to bed early tonight.
should
If you are late to class you ought to / should say sorry to the teacher.
both
I started reading Harry Potter, but I _________ finish it. It was too long.
couldn't/wasn't able to
I've invited Mark to the party, but I don't think he'll ________ come.
will be able to
He _______ play the piano when he was only four years old.
could / was able to (formal)
Excuse me, do you think you _______ help me with my bags?
could
We won't _______ to meet tonight, I'm working.
be able to meet
