【题目】 I can’t understand why he ________ so angry. I meant no offence.
It’s typical of him to be so sensitive.
A. must have been B. should have been C. might have been D. can have been
在线课程【答案】B
【解析】
考查情态动词+have done。句意：——我不明白他为什么这么生气。我无意冒犯。——他很敏感，这是他的特点。should have done“本应该做而没有做”，结合句意可知答案为B。