Question

—Jane looks very sad. Did you tell her about the sad news?

—Yes, but I ________ her later.

[　　]

A．must have told

B．shouldn't have told

C．should have told

D．oughtn't to have told

Answer 1

答案：C
解析：

问句：你把那个坏消息告诉了她吗？答句：告诉了，但我该晚点再告诉她的。根据上面分析可知，B，D两答案相同，而A项则表示对过去发生的事情的肯定推测，故选C．

提示：

此题考查的就是题前师生讨论的问题。should的用法还有：should＋v．表示推测，这也是情态动词的推测性用法之一。