keep the door open to let fresh air in.分析句子结构

don‘t keep the door open 还是keep not the door open,keep什么时候作系动词什么时候作实意动词 Please keep the door _____(close).Don't open it.说明原因 keep the door open 中的keep是不是系动词 Let the window closed,keep the door open否定句 Please keep the door open还是opening? 为什么? Will you please keep the door 用open适当形式 open please the keep door 连词成句 it is hot outside and keep the door----(open)please you must keep the door（ ）填open还是opening, （ ）you( )(keep)the door open when you go out Your bag will keep here until you come back.为什么不行,而The door won’t open行 would you mind if l keep the door open?( ).a.yes.do it b.no.of course c.yes.go aheadd.no.you can't open it open the door sorry,the door open 为什么要填上wont keep the door open ,keep the room clean.这在语法中是什么形式啊, You'd better not keep the door open中为什么open不用加ing? The door won't open 为什么用won't don't open the door until the car___(stop) Open the door,please.