The boy is go to school.A. old enough B. old enough to C. enough old

问题补充：

The boy is go to school.

A. old enough B. old enough to C. enough old

答案：

解析：本题的含义是那个男孩岁数大了足以去上学，enough to do表示足以做某事，enough修饰形容词放在形容词后，故本题选B。