Question

【题目】_______he found _______interested in art very much.

A. At four-year-old; him B. At four years old; himself

C. At four year old; himself D. At four years; himself

Answer 1

【答案】B

【解析】

句意：四岁时，他发现自己对艺术非常感兴趣。复合形容词four-year-old只能放在名词前用作定语，排除A；基数词four后跟可数名词复数形式，排除C；在某人几岁时，要表达为“at+基数词+years old”，故答案为B。