such being the case是一现成说法

有一读者问： 为何这道题选C：

Such_________the case, there were no grounds to justify your complaints.

A. was　B. were　C. being　D. would be

such being the case（事实既是如此）是一英语现成说法（可查阅《新英汉词典》such词条），在此正合乎句意。从语法上讲，它是一分词独立结构。