— You must keep the door when you leave your room. — But I want to get the fresh air. I t

问题补充：

— You must keep the door when you leave your room.

— But I want to get the fresh air. I think I can keep the window instead.

A. close, opened

B. open, closed

C. closing, open

D. closed, open

答案：

A. close, opened

B. open, closed

C. closing, open

(答案→)D. closed, open

解析：句意：你离开你的房间时你必须把门关好。但是我想要新鲜的空气。我认为我可以开着窗口。Closed关着的，open开着的。Keep + 名词 + 形容词，是一习惯用法，所以选D。