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