不懂为什么选D阿it was very kind of you to do the washing up,but you _______itAmusyn't have doneB.wouldn't have doneC.mightn't have doneD.didn't have to do为什么选D阿 不是虚拟吗？

不懂为什么选D阿it was very kind of you to do the washing up,but you _______itAmusyn't have doneB.wouldn't have doneC.mightn't have doneD.didn't have to do为什么选D阿 不是虚拟吗？
不懂为什么选D阿
it was very kind of you to do the washing up,but you _______it
Amusyn't have done
B.wouldn't have done
C.mightn't have done
D.didn't have to do
为什么选D阿 不是虚拟吗？

不懂为什么选D阿it was very kind of you to do the washing up,but you _______itAmusyn't have doneB.wouldn't have doneC.mightn't have doneD.didn't have to do为什么选D阿 不是虚拟吗？
与现在事实相反,因为实际上已经做了.
与现在事实相反的虚拟语气用:过去式表示.
本题的意思是:你真好,帮我洗完了.但是,你不一定得干这个.

表过去的事情，你不必做这个