Uzupełnij dialog modalnymi czasownikami : must, may, might, could, can't.
- Hi Dave. Have you seen Brian ? - Yeah, I saw him in the computer room some time ago. He .... still be there. - No, he isn't. I've just come from the computer room. - I don't know then. Have you checked the gym ? He ... be there playing football with his friend from the football club. - No, they ... be there. The gym is closed today. But if they are playing football, they ... be in the playground. - In the playground ? You ... be mad ! It's pouring with rain ! - OK, you ... be right there. But where ... he be ? I've looked almost everywhere. - He ... be at school then - perhaps he has already gone home. Ian ... Look ! Over there ! Crossing the road ... - No, it ... be Brian. He is much taller than that boy. I think I'll ask the teacher. She ... know if Brian's class is still at school.