---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
网友回答
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”。