Modalverbs of possibility

Escolha o verbo modal que completa a frase.

It's 10:00 a.m. He ________ be in the office now

• must

• can't

• could

They live in a very big and fancy house. They _________ be rich.

• might

• can't

• must

Where is Anna? – I don't know. She ______ be at the swimming pool or in the park.

• can't

• may

• must

Don't ring the doorbell when you get there. Maria's little baby _______ sleeping

• might

• must

• can't

My friend promised to pick me up at 7:00. It's now 7:25 and I don't see him. He ________________

• must have forgotten.

• might have forgotten.

• can't have forgotten.

My white shirt now has green streaks in it.

• I can't have washed it properly.

• I must have washed it properly.

• I may have washed it properly.

Look! Our car isn't in the park!

• someone might have stolen it.

• someone can't have stolen it.

• someone must have stolen it.

Betty said she was hungry, but she didn't eat very much after all.

• she can't have liked the food.

• she couldn't have liked the food.

• she must have liked the food.