must we keep the window ____A.open B.opened 我选B.因为过去分词作定语嘛`

问题描述:

must we keep the window ____A.open B.opened 我选B.因为过去分词作定语嘛`

open 这里是形容词,不是动词,表示状态
比如:keep the patient calm,使病人保持安静