We___for her because she never came.A.shuldn't had waited B.shuld_英语解答

We___for her because she never came.A.shuldn't had waited B.shuldn't have waited
为什么？

人气：478 ℃　时间：2019-08-22 08:16:10

解答

选B
should have done表示本应该做而没有做
should not have done 表示本不该做而做了
再者should后面当然要接动词原形了,不会是had