don‘t keep the door open 还是keep not the door open,keep什么时候作系

don‘t keep the door open 还是keep not the door open,keep什么时候作系 keep the door close/open? Please keep the door _____(close).Don't open it. keep the door open 中的keep是不是系动词 Please keep the door open还是opening? 为什么? You'd better not keep the door open中为什么open不用加ing? Let the window closed,keep the door open否定句 it is hot outside and keep the door----(open)please （ ）you( )(keep)the door open when you go out open please the keep door 连词成句 适当形式填空 We should keep the door open ,not _______(close) keep the door open ,keep the room clean.这在语法中是什么形式啊,