The answer would be ¿Que hiciste? which means what did you do. First Toño said he was in Nicaragua, and last he said he relaxed at the beach. Paul asking what he did is the only one that makes sense. I hope this helps, and happy holidays!
Hoy ellos van al cine. hope this helps
1 Qué.
2 Quien.
3 a qué hora.
4 cuánto.
5 quienes.
6 cuando.