You ________ wear a helmet while riding a bike. (✓ )
Must
He ________ forget his passport when he travels abroad. (x)
must not / mustn't
She ________ go to bed early because she has an early class tomorrow. (✓ )
Must
They ____________ attend the party if they don't want to. (x)
Don't have to
I ____________ wake up early tomorrow. It's Sunday. (x)
Don't have to
We _________ study for the test because it's been cancelled. (x)
Don't have to
They ________ clean the house today, we can do it tomorrow. (x)
Don't have to
Halil _________ go to work tomorrow, it's a national holiday. (x)
doesn't have to
I _____________ forget to call my mom on her birthday. (x)
Must not/ Musn't
You sit on the sofa all the time. You ________ take some exercise. (✓ )
must
I _____ get up at 6 every day. (✓ )
must
____ I ______ wear black shoes to school?
Do I have to
