If he the opportunity at that time he would be the new department manager now.A. seizedB

问题补充：

If he the opportunity at that time, he would be the new department manager now.

A. seized

B. should seize

C. has seized

D. had seized

答案：

A. seized

B. should seize

C. has seized

(答案→)D. had seized

解析：考查虚拟语气的用法。根据句子结构可知，该句用的是if引导的错综虚拟条件句，If引导的从句中是对at that time，过去进行虚拟，要用had done的形式，主句对now现在进行虚拟，采用would do的形式