问题描述：
— You’ll have to use the stairs.I’m sure the lift is out of _______.
— Is it under repair?
— Yes.
A.control B.use C.work D.order
其他三个为什么不可以呢？
— Is it under repair?
— Yes.
A.control B.use C.work D.order
其他三个为什么不可以呢？
问题解答：
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