You ___ eat too much junk food; it's not good for your health.

We ___ start the meeting on time to avoid any delays.

Tom ___ play the guitar very well when he was younger.

You ___ be careful when crossing the street.

They ___ not attend the event if they have other commitments.

I ___ come to the airport to pick you up if you need a ride.

You ___ finish your homework before going out to play.

It's raining outside, so you ___ take an umbrella with you.

She ___ have left her keys at home; I found them on the kitchen table.

Does "need" function as a modal verb when expressing necessity?

Is "would" commonly used in hypothetical or unreal situations?

Can "must" be used to express obligation or necessity?

If you want to give advice, which modal verb should you use?

Which modal verb is commonly used for making requests or asking for permission?