题目内容
The key ____ for opening the door of the room.
A. uses B. is using C. is used D. used
【答案】
C
【解析】此题重点考查固定短语be used for doing sth被用来做某事。
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题目内容
The key ____ for opening the door of the room.
A. uses B. is using C. is used D. used
C
【解析】此题重点考查固定短语be used for doing sth被用来做某事。