—What’s the matter with you ?—Oh I’m not feeling well in the stomach . Iso much fried fis

问题补充：

—What’s the matter with you ?

—Oh, I’m not feeling well in the stomach . Iso much fried fish just now .

A. shouldn’t eat

B. mustn’t have eaten

C. shouldn’t have eaten

D. mustn’t eat

答案：

A. shouldn’t eat

B. mustn’t have eaten

(答案→)C. shouldn’t have eaten

D. mustn’t eat

解析：本句语言环境为“我胃痛，刚才本来不应该吃那么多炸鱼”。shouldn’t have done本来不该做某事，而事实上做了。故选C。