What are they?storybookThis is my Is this your?Whose is this?Whose Is this your is testbooksharpener eraser?:Whose.is this?:Its mine.:,is this your.?:Yes,its mine.No,it isnt.Itss.A:Is this your?B:Yes,it is.(No,it isnt.)A:Whose is this?B:Its mine.(Its s)Is this your schoolbag?Yes,yes,it is.Its green,its big and its cool.Is this your activity book?No,no,it isnt.Its pink,its new and its nice.