---Did you get a ticket?-Yes. Otherwise I the concert last night.A. didn’t attendB. wou

问题补充：

---Did you get a ticket?

---Yes. Otherwise I the concert last night.

A. didn’t attend

B. wouldn’t attend

C. hadn’t attended

D. couldn’t have attended

答案：

A. didn’t attend

B. wouldn’t attend

C. hadn’t attended

(答案→)D. couldn’t have attended

解析：句意，这是两个人之间的对话。第一个人说：“ 你有票吗？” 第二个人说： “是的，否则昨晚我也不可能去听音乐会。” couldn’t have done 表示“不可能已经做了某事”。