--- What on earth is that noise?
--- Oh, the next flat .
A. was decorated
B. was decorating
C. is being decorated
D. is to be decorated
网友回答
A. was decorated
B. was decorating
(答案→)C. is being decorated
D. is to be decorated
解析：考查时态。---怎么这么大的噪音？--下一层楼正在被装修，根据句意可知是正在发生的事情，故用现在进行时的被动语态，选C。