问题
选择题
Oh, I’m not feeling well in the stomach. I _________ so much mushroom this morning.
A．shouldn’ t eat
B．musn’t have eaten
C．mustn’t eat
D．shouldn’t have eaten
答案
答案：D
考查情态动词用法。根据句意可知是对过去情况进行说明，所以使用情态动词+have done，排除ABC. Should have done本应该做某事实际上却未做。句意：我肚子痛。今天早晨我本不应该吃那么多的蘑菇的。