Must and can't

You've been travelling all day. You be tired.

That restaurant be very good. It's always full of people.

That restaurant be very good. It's always empty.

I'm sure I gave you the key. You have it. Have you looked in your bag?

You're going on holiday next week. You be looking forward to it.

It rained every day during their holiday, so they have had a very nice time.

Congratulations on passing your exam. You be very pleased.

You got here very quickly. You have walked very fast.

Bill and Sue always travel business class, so they be short of money.