at failing in the math exam, John wouldn’t like to talk about it to his parents.
A. Disappointed
B. To be disappointed
C. Disappointing
D. Having disappointed
网友回答
(答案→)A. Disappointed
B. To be disappointed
C. Disappointing
D. Having disappointed
解析：考察形容词修饰主语。因为主语是John，所以使用形容词Disappointed修饰。短语Disappointed at failing in the math exam修饰主语John。句意：对于数学考试失败感觉很失望，约翰不想和他的父母谈论这个问题。