they were interested in
A todos les interesaba la historia.
Everyone was interested in the story.
No les interesaba dar un paseo en un barco de vela de verdad.
They weren’t interested in taking a ride on a real sailboat.
No sabía que a Tom y Mary les interesaba el arte.
I didn't know Tom and Mary were interested in art.
No les interesaba conocer los lugares de interés.
They weren’t interested in seeing the sights.