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