keep your windows closed before leaving the room.为什么用“closed

keep your windows closed before leaving the room.为什么用“closed 1 Please keep the windows closed.为什么不能用closing呢?不是keep doing please keep your eyes closed.为什么要用closed.而不用close We must keep all the windows -----.A close B closed the children must keep their eyes closed now 为什么用closed All the windows of our classroom is closed.为什么是closed Keep your eyes closed ,这里为什么是clousd 呢 When the boy sleeps,he would like to keep the Windows closed When they left the room,they closed the windows.这句话对还是错?clos t’s too cold .Please keep the window ________(关着) 为什么用closed It's very cold today.Please keep the door_____.空里为什么用closed, keep eyes closed,close 为什么加d?