问题补充:
If it had not been for your help, I the examination.
A. could not pass
B. would not pass
C. would not have passed
D. can not have passed
答案:
A. could not pass
B. would not pass
(答案→)C. would not have passed
D. can not have passed
解析:考察虚拟语气,跟条件从句要不是你的帮助,从句为过去完成时态,可知主句事情已经发生,可知选C,我不会通过这次考试。