the library ___ until seven o’clock in the evening .A srays open B stays opening Ckeeps opening D keeps opened
问题描述：
the library ___ until seven o’clock in the evening .A srays open B stays opening Ckeeps opening D keeps opened
答
A stay 和keep 都可以做系动词,后面跟上形容词表示状态
open 本身就是可以做形容词的,表示开着.