He is so young that he can't look after himself well(同义句转换)急!He is too young to ()()()()himself.

He is so young that he can't look after himself well(同义句转换)急!He is too young to ()()()()himself.
He is so young that he can't look after himself well(同义句转换)急!
He is too young to ()()()()himself.

He is so young that he can't look after himself well(同义句转换)急!He is too young to ()()()()himself.
He is too young to take good care of himself