单选题
If I ______ that your business was growing so rapidly. I wouldn't have been worried about it.
【正确答案】
B
【答案解析】[解析] 本题考查虚拟语气。由本题的主句“．．．I wouldn't have been worried．．．”可判断本题是与过去事实相反的虚拟语气．其时态为：从句的谓语动词用过去完成时．主句的谓语用would/should/ could/might加上现在完成时。所以C为正确答案。