问题
选择题
The key ____ for opening the door of the room.
A．uses
B．is using
C．is used
D．used
答案
答案：C
此题重点考查固定短语be used for doing sth被用来做某事。
搜题请搜索小程序“爱下问搜题”
The key ____ for opening the door of the room.
A．uses
B．is using
C．is used
D．used
答案：C
此题重点考查固定短语be used for doing sth被用来做某事。