We ________ recycle the garbage.
Should
I saw someone stealing in that shop. I _______ tell the police
Must / Have to
You ___________ get up early tomorrow because it's Sunday!
don't have to/needn't/don't need to
You ________ listen to the teachers
Have to / Must
You _________ use mobile phones in class.
Mustn't / can't
You ________ smoke here
mustn't / can't
You ______ wear a uniform at school.
Must / Have to
You _______ pay for the ticket. It's free!
needn't/don't need to/don't have to
You _______ do a lot of homework.
need to
I'm really tired! I went mountain biking this morning. I __________ relax
need to
You ________ eat so much chocolate. It's not good for you.
Shouldn't
You ________ eat lots of fruit and you _________ eat too much sugar
Should - Shouldn't