Turn off your phone in the movie theater.
You should/ought to turn off your phone in the movie theater.
You _________ (drink) alcohol when you are under 21 in the U.S..
Mustn't drink
What time ____ we _______ (leave) tomorrow?
What time do we have to leave tomorrow?
Is the following statement, necessary, not necessary, or prohibited?
Have a passport to travel to another country.
necessary
(You have to have a passport to travel to another country)
He ______ stop eating sugar because he found out he has diabetes.
has to / must
Correct the error: She must to have breakfast everyday, otherwise she doesn't feel very well.
she must have...
Go to bed early.
You should / ought to go to bed early.
She ___________(not pay) for groceries this week because she won a gift certificate to the supermarket.
She doesn't have to pay
correct the error: She had better not to go to bed too late. She has an early meeting the morning.
She had better not go...
Students __________ cheat on tests; otherwise, they could be expelled from school.
must not, had better not
The bus is finally here! We ___________(not wait) anymore!
don't have to wait
Fill in the blank: They_________(have) a lot of security at the restaurant when the president comes.
must have, they have to have
NEVER text while driving or you might have an accident. (strong advice)
You had better not text while driving, or you might have an accident.
Driving laws are different in every country. You _________know the rules before you start driving in a new place.
have to / must
We ____________ (not bring) a laptop to class, but we can if we want to.
We don't have to bring
Find the error: They must not to eat and drink in the classrooms. It's prohibited.
They must not eat and drink...