COME BACK TO

а. возвращаться куда-л. или к кому-л. I always come back to the same town for a holiday as it's so nice. б. вспоминаться кому-л. The details of the story are coming back to me now, although it happened a long time ago. It suddenly came back to mi where we met. в. возвращаться к предмету разговора I think it's time to come back to the most important question: who is to pay for the new building?