He was not the only one to A:fail the exam B to have failed the exam

问题描述:

He was not the only one to A:fail the exam B to have failed the exam
我感觉应该选b,但朗文字典505页里derive单词有个例句,用的是A,不确定者勿扰

A:fail the exam
to fail the exam是不定式作定语,不用考虑完成时.