Modals of Deductions

Congratulations on passing your exam! I'm sure you _______ very pleased!

• can't be

• must be

• might be

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

• must

• can't

• could

You got here very quickly. You ________ very fast.

• must have walked

• can't have walked

• must walk

Mike and Susan go on holiday very often, so they _______ be short of money; it's impossible!

• must

• might

• can't

Tom isn't at work today. He ______ ill.

• must have felt

• must be feeling

• can't be feeling

The door was locked from the inside, so the person _______ the house yet.

• can't be left

• can't have left

• might have left

It _______ raining, but I’m not sure.

• could be

• must be

• can't be

He _______ his phone at the restaurant. He couldn't find it when he arrived home.

• must have left

• can't have left

• could have left

This _______ the right address; it’s an empty lot.

• can't be

• must be

• may be

They _______ a surprise for her birthday. They are talking about something.

• might have planned

• may be planning

• must be planning