Look!The door is_________.Who________it?(open)

look,the door is open,为什么open不加ing? 改错 Look!The door open.Please close it. Open the door,please. open the door please,-------- ---------? Leave the door open. Open the door,_____? the open door The door was stayed open 还是The door stayed open I find the door open keep the door close/open? 8.The door can open . Please ___(open)the door