人教人教PEP四年级上册英语四年级上册英语 Welcome to my classroom!Work and playb o a r dClean then boardMany crayons!Clean the windowdoorOpen the door!windowboarddoor s d k esturn on the light lightlightpicturePut up the picture!windowboarddoor s d k esMy classroom windowboarddoor s d k esMy classroomMy room