John passed the exam,although he didn't study very much for it
Theexam_______difficult.A.can'thavebeenB.musthavebeenC.couldn'tbeD.mighthavebeen选哪一个为...
The exam _______ difficult.
A.can't have been
B.must have been
C.couldn't be
D.might have been
选哪一个 为什么 展开
A.can't have been
B.must have been
C.couldn't be
D.might have been
选哪一个 为什么 展开
3个回答
展开全部
C,靠语感。具体分析是这是一个推测性的语句
本回答被网友采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
选C.John 不努力却通过考试暗含考试并不难,所以排除首先BD,如果选A的话,表示本不可能难却很难,也表示尘闷圆题难,与题干矛盾。派塌且由题干罩毁可知是过去发生的事,所以用couldn't.
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询