He was about his son who is always skipping classes.A. worried worriedB. worrying wo

问题补充：

He was about his son, who is always skipping classes.

A. worried, worried

B. worrying, worried

C. worried, worrying

D. worrying, worrying

答案：

A. worried, worried

B. worrying, worried

(答案→)C. worried, worrying

D. worrying, worrying

解析：形容词辨析。Worrying令人担忧的（通常修饰事物）；worried感到担忧的（通常修饰人）。Be worried about…最…担忧；句意：他很担心他那个令人担忧的儿子，他总是逃课。根据句意说明C正确。