Question

【题目】－Mary，how did your Math test go?

－I had thought I _________，but in fact I came in the top 10 in my class.

A． should have failed

B． couldn’t have failed

C． have failed

D． shouldn’t have failed

Answer 1

【答案】A

【解析】should have done的意思是：本应该做（但此结构暗示了实际上没有完成），根据句子的意思可知此题应选A。