Modal verbs

I can play the piano very well.

I'_ ____ to play the piano very well.

When are you able to stay out until at the weekend?

What time ___ you stay out until at the weekend?

I should revise before I take a test.

Before I take a test, I _____ to do some revision.

There are rules at school you have an obligation to follow

You ____ __ follow rules when you are at school.

There is no obligation at home to do jobs to help my parents.

I _____'_ ___ to do any jobs at home to help my parents.

Eating well and doing exercise are things you need to do to be healthy

To stay healthy, you ____ do exercise and eat well.

Last year, I wasn’t able to do it, but now I can.

Last year, I ______'_ do it, but now I can.

You are not permitted to walk on the grass.

You _____'_ walk on the grass.