The boy is to take care of himself. A. enough old B. enough youngC. old enough

问题补充：

The boy is to take care of himself.

A. enough old B. enough youngC. old enough

答案：

解析：词义辨析。Old老的；young年轻的。句意：这个男已经足够大照顾自己，enough修饰形容词，位于其后，根据意思，可知答案C。