Question

----- John looks a bit upset. Did you tell him the bad news?

----- Yes, but I _____him after his birthday party.

A. should have told　　　　　　　 B .must have told

C. shouldn’t have told D. needn’t have told

Answer 1

A

 解析:考查虚拟语气。Should have done sth本应该做某事实际上却未坐；must have done一定做了某事；shouldn’t have done本不应该做某事，实际上却做了。Needn’t have done本不需要做某事，实际上却做了。句意—John看上去有点难过。你把那个坏消息告诉他了？—是的。可我本应该是在生日聚会以后在告诉他的。根据句意说明A正确。

考点：考查虚拟语气

点评：虚拟语气的考查重点要关注if条件句的虚拟语气，不同的时态使用不同的形式。