— Pity you missed the lecture on nuclear pollution —I it but I was busy preparing for a

问题补充：

— 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：

A. attended

B. had attended

C. would attend

(答案→)D. would have attended

解析：考察虚拟语气。根据but后面的过时可知与过去的事实相反。用情态动词+have done表示与过去事实相反。故D正确。句意：我本来是会参加的，但是我一直忙于准备面试。