学习介词in,on,under,near,behindin in the boxin the bagin the deskonon the boxon the deskon the wallunderunder the deskunder the chairunder the bednear the boxnear the chairnear the deskbehind the box behind the chair behind the desknearbehindWhere is the cat? It is under the bed.Where are the shoes? They are near the door.1 A:Wheres the book? B:Is it on the floor? A:No.I cant see it. B:Its in the desk.2 A:Where are the pears? B:Are they in the bag? A:No they arent. B:They are here in the box.