Special to the Advance“Have you ever wondered what would happen if the Rio Grande River lost all of its water, in the RGV?”That’s a question that was asked by Pharr Community Theater’s longtime director/ producer, Pedro Garcia.“Most of us take the Rio Grande for granted, unless it’s to think about the undocumented trying to cross it to the USA,” he said. “Nevertheless, the river drying up concept is a predominant issue in our upcoming, fun Christmas play, A Tejano Christmas Carol.”Now, in rehearsals since last October, an ensemble of 12 adults and 8 children from different parts of the RGV ...