It is strange that she---in the last exam A,should have failed B.should fail 选哪个

It is strange that she---in the last exam A,should have failed B.should fail 选哪个
It is strange that she---in the last exam A,should have failed B.should fail 选哪个

It is strange that she---in the last exam A,should have failed B.should fail 选哪个
答案：B
给你翻译一下
如果选A,则是It is strange that she should have failed in the last exam ,翻译为：奇怪的是,她应该在最后的考试失败
如果选B,则是It is strange that she should fail in the last exam ,翻译为：奇怪的是,她在过去的考试失败

选B，should 在这里表示竟然，含有吃惊之意。A should have done 表示本应该做某事而未做

B.should fail （strange后用虚拟语气）