Question

【题目】—I’m sorry, I ________ have been so rude to you that way.

—Forget it, but I was a bit out of control yesterday.

A. mustn’t B. shouldn’t

C. couldn’t D. needn’t

Answer 1

【答案】B

【解析】考查情景交际和情态动词。句意：——抱歉，我本不该用那种方式对你那么粗鲁。——不必在意，昨天我也有点失控。根据对话可知，此处是对过去所做事情感到后悔。shouldn’t have done表示本不该做而做了。故选B。