题目内容：

my father and my mother ___work last week A.don't B.weren't C.didn't
是weren't还是didn't呀

优质解答

C
weren't用于过去进行时

追问：

哦，可是didn't也是过去式呀。总之，88.谢谢

追答：

对的，若用weren't，后面要用working，但是这个也不好，因为它是指某个时间点某人在干什么。