问题
选择题
________ Anirban Maitra, a professor at Oxford University, Jack’s success would not have been possible.
A．If it weren’t for
B．Were it not for
C．Had it not been for
D．If it hasn’t been for
答案
答案：C
题目分析:考查虚拟语气。从主句would not have been推断句子应该是对过去情况的虚拟假设，所以从句应该用had done，故C选项正确。句意：要不是牛津大学的教授--- Anirban Maitra, 杰克是不可能成功的。