Modals of deduction (Present and Past)

Wow, she's got five hundred friends. She ________ be very popular.

• might

• can't

• must

There ________ be anyone at home now. All the lights are off.

• might

• can't

• must

The documentary last night was brilliant. You _________ it. (should/watch)

Maxwell ___________ anything. It was our secret. (should not/ say)

I'm not really sure how I fell off my bike. I _________ a rock.

• might have tripped over

• can't have tripped over

• must have tripped over

The baby fell asleep in two minutes. It _________ very tired.

• might have been

• can't have been

• must have been

Perry hasn't got any money. He _________ that phone.

• might have bought

• can't have bought

• must have bought

Bella _________ be very tired. She's been working all night.

• might

• can't

• must

It _________ be a spider. It's just got six legs.

• might

• can't

• must

I always lose my wallet. I __________ it at home.

• might have left

• can't have left

• must have left