he went out ,the window was open合成一句话he went out with the window ___ 是open 还是opened

题目

he went out ,the window was open合成一句话he went out with the window ___ 是open 还是opened

答案

应该是open,在这个语境下open 是个形容词表示状态.
另外小小的提一下,with+adj是个常用结构,表示一种状态,如：
She went to school with the frontdoor open.