Unit 15Wheres my bone?Where is？Wheres？It is Its Where is the pen?Its on the box.Its_the box.inWheres the pen?ndnd Its _ the box.under Its _ the box.behindbi haindin front ofbehindThe boy is in front of the bus.Millie sits _ me.Kitty sits _ Simon.in front ofbehindSimon sits _ Kitty.Amy sits _ Sandy.in front ofin front ofWhere is Where is it?It is Its Is it？Yes,it is.No,it is not.No,it isnt.。