＿＿＿＿＿ for your brother, I would not have gone to see Mr. Wang.
A. If it is not
B. Were it not
C. Had it not been
D. If they were not
网友回答
A. If it is not
B. Were it not
(答案→)C. Had it not been
D. If they were not
解析：含有if的虚拟条件句可把if省略，而把had，should，were等提到句首，构成倒装。