They ________ clean their room every day!
don't have to
I ____ speak Chinese, It's a difficult language!
can't
Guys, _____you turn off your microphones,please?
could
You _____ eat more healthy food
should
_____ I go to Ben's party?
Can
You _____ lie to your friends. They love you just the way you are!
shouldn't
You _____use wash your hands with soap when you come back from the supermarket.
must
She _______ feed the cats on Mondays and Wednesdays
has to
He ________take a shower every morning
doesn't have to
What does this sign express?
You must slow down.
Obligation
You ______try to get on with your parents.
should
She _______ ride a bike last year.
couldn't
Mister, _____you turn the heater on ? It's very cold in here!
could
What does this sign represent?
You musn't stop!
Prohibition
She ______cheat on the tests
musn't