It's too hot in the room.Please keep the door______A.opening B.open C.opened D.to open
问题描述：
It's too hot in the room.Please keep the door______
A.opening B.open C.opened D.to open
答
A。keep doing sth持续做某事
答
B
答
选择B.
open 本身就是形容词（敞开的,打开的）