You _______ be 21 or older to drink alcohol in the United States
must
You _________ feed the birds.
mustn't / can't
Cats use a litter box, so you ___________________walk them every day like dogs.
don't have to / don't need to
You _________ break up with someone by text message.
shouldn't
You _________ drive more than 15 mph when children are present.
mustn't / can't
You __________________show your passport at the airport.
must / need to / have to
You _____________ stop your car when a police car is behind you.
must / need to / have to
You __________________ pay the full price of many museums.
don't have to / don't need to
A mother ________________feed her baby every day or it will die.
needs to / has to / must
Public transportation in New York is great, so if you live here, you really __________ buy a car.
don't have to / don't need to
You __________ touch the art.
mustn't / can't
You’re very overweight. I think you ________________ eat more vegetables and go on a diet.
should / have to / need to
You ________________ wear your glasses every day then if you can’t see well.
should / need to / have to
In American homes, guests __________________ take off their shoes when entering.
don't have to / don't need to
You __________________ cheat on the test. It’s wrong.
shouldn't / mustn't / can't
You _____________ drink the water. It’s not safe.
mustn't / can't / shouldn't
