We milk cows last Tuesday.（改一般疑问句并肯定和否定回答）

首先 句子就有问题
应为We milked cows last Tuesday.（因为我们小学是这么教的,如果不对,请你无视）
一般疑问句
Did you milk cows last Tuesday?
肯定回答
Yes,we did.
否定回答
No,we didn't.