问题
选择题
——-We had a good time in dancing at a disco, why didn't you go with us?
——-I ________ there, but my parents didn't let me go.
A．couldn't go
B．failed to go
C．hadn't gone
D．would have gone
答案
答案：D
考察时态，根据 why didn't you go with us可知，回答的时候讲述的时态应当是过去式。根据but my parents didn't let me go可知，该处用的是虚拟语气，即，我本来要去的，但是我的父母不让我去。
Would have done是对过去的虚拟