— My dog is really fat. — You have given it so much food. A. wouldn’tB. couldn’tC. shouldn

问题补充：

— My dog is really fat. — You have given it so much food.

A. wouldn’t

B. couldn’t

C. shouldn’t

D. mustn’t

答案：

A. wouldn’t

B. couldn’t

(答案→)C. shouldn’t

D. mustn’t

解析： 词义辨析。wouldn’t不会；couldn’t不能；shouldn’t不应该；mustn’t不可以。句意：我的狗太胖了。你不应该给它吃如此多的食物。所以选C。