Relier Pairs PossibilitiesVersion en ligne revising modals for degrees of certainty in the past, present and future par Canan Schaerer 1 I can't find my keys. 2 Someone's left their umbrella here. 3 I'm starving! Is there anything to eat? 4 She must be his girlfriend. 5 Someone was at the door a few minutes ago. 6 That's the doorbell. Do you think they're here already? 7 I can't read this signature – can you make anything of it? 8 Happy birthday! Can you guess what it is? 9 Who's that sitting next to Andrew? 10 Look! What's that? It can't be a plane. 11 Eddie was very quiet this morning. 12 Do you think Gran's alright? She's not answering her phone. The surname could be Smith. That looks like an 's'. It's flying too low. It must have been the postman. He always comes at eight. She might be having a nap. She often does after lunch They can't be. They only left ten minutes ago and it takes an hour. It must be his dad. He looks just like him. You might have left them at work. He must have been tired – he flew back from London last night. Look, they're holding hands. It can't be a book - it's not heavy enough. Is it a video game or a DVD? You can't be hungry again! You've only just had lunch. It might be Laura's. She was in here earlier.