Modals of Permission, Obligation, and Prohibition

Front

_________ I go to the library, please?

Back

can

Front

Dolphins ___________ swim very fast.

Back

can

Front

I _____________ go to bars because it's prohibited for those 17 years old and below.

Back

can't

Front

Penguins __________ fly.

Back

can't

Front

Fill in the blanks: __________ you dive? No, I __________.

Back

can, can't

Front

I ___________ eat in the classroom.

Back

mustn't

Front

Sheena _________ use her books in quizzes.

Back

must

Front

What should my dad avoid eating due to his diabetes?

Back

He mustn't eat too many sugary foods.

Front

Everybody must wash their hands every time they touch something.

Back

must

Front

Denie must do his chores every day.

Back

must