— No wonder you caught a cold. You out last night without a coat.
— I know how silly I was.
A. shouldn’t have gone
B. mustn’t have gone
C. couldn’t have gone
D. mightn’t have gone
网友回答
(答案→)A. shouldn’t have gone
B. mustn’t have gone
C. couldn’t have gone
D. mightn’t have gone
解析：考察虚拟语气。句意：难怪你感冒了。你昨晚不该不穿外套出去。——我知道我有多蠢了。“shouldn’t+have+done”表示本来不应该做某事，而实际做了。含有指责对方或自责的含意。故选A。