题目内容
The key you have just got the front door.
A.is used to opening | B.is used to be opened |
C.is used to being opened | D.is used to open |
D
解析

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题目内容
The key you have just got the front door.
A.is used to opening | B.is used to be opened |
C.is used to being opened | D.is used to open |
D
解析
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