问题
选择题
—Pity you missed the lecture on nuclear pollution.
—I _____it, but I was busy preparing for a job interview.
A．attended
B．had attended
C．would attend
D．would have attended
答案
D
题目分析：考查虚拟语气。句意：—很遗憾你错过了那个关于核污染的演讲。—我本来要去参加的，但是我忙于准备工作面试。根据句意说明是对过去发生的情况的虚拟，故使用“情态动词+have done”。故D正确。
点评：本题的关键是抓住but I was busy preparing for a job interview这里的过去时，表示是对过去事情的虚拟。