он готовил пищу для щенка, играл с

он готовил пищу для щенка, играл с ним, ходил гулять и учил понимать многие вещи

Результаты (английский) 1:

He was preparing food for a puppy playing with him, went for a walk and taught to understand many things

Результаты (английский) 2:

he was preparing food for puppies, I played with them, went for walks, and taught to understand a lot of things

Результаты (английский) 3:

he prepared food for the puppy playing with him, i went for a walk and taught to understand many things