Modal verbs

I can play the guitar, but I can't sing.

• Permission

• Request

• Ability

May I borrow your phone to make a call?

• Deduction

• Permission

• Obligation

There's no one here. They must be on vacation.

• Deduction

• Ability

• Request

Could you close the window, please?

• Obligation

• Request

• Deduction

In my school, we _________ wear a school uniform. It's the rule.

• must

• might

• can

You ________ borrow up to three books from the library.

• have to

• must

• can

________ you tell me your address, please?

• Have to

• Might

• Could

You _________ use your cell phone during the lesson.

• mustn't

• wasn't able

• had to

_______ I go to the restroom?

• Must

• have to

• May

My leg hurts. I _______ walk now.

• can't

• have to

• must