Complete the dialogue with the words from the box. they're Whose yours mine's these Mrs Bush What a mess! Let's tidy the classroom. (1)__________ pen is this? Tim It's (2)__________ , Mrs Bush. Mrs Bush And whose pencil case is this? Is it (3)__________ , Alice? Alice No, it's not mine. It's Tim (4)__________ under the desk? Are they Mrs Bush OK. Whose socks are (5)__________ yours, Tim? Tim Sorry, Mrs Bush. Yes, (6)__________ mine. Mrs Bush Tim! Please tidy up your pen, your pencil case and your socks!