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。