open the door and from inside out这句话的主语是什么?是door吗?求分析结构 可以作为独立的一句话吗?

45.Helen is my friend.Amy is my fr iend,too.(并为一句)Helen and Amy ________ ________ m y ________.46.Please open the door.（改为否定句） the door,please. open,air,the,door,the,and,room(连词成句) open the window and close the door 这句话对吗? 初一英语一道单选Please_____ the door and now the door is_____.A.open；open B.open；opened为什么呢？ Open the door,please. open the door please,-------- ---------? Leave the door open. it is hot outside and keep the door----(open)please Go and open the door ,please改为同义句 go and open the door ,please同义句go（）（）the door please I pushed the door,and it was open open后加不加ed? The door was stayed open 还是The door stayed open Please_______(not open)the door. Please ___(open)the door Open the door,_________ ________? open the door 否定旬 tring to open the door Nick,( )(open) the door,piease