Answer:
c) perdío
this is the correct tense of the word
It is a compound sentence
There are more than one words that could fit here
Club - Self-describing, it's the same in spanish
"a la discoteca" - Discoteca is that, a disco, a place for dancing and listening to music
Concierto - A concert
I could probably think of more, but I guess you have enough there. Choose the one you like best
Bailas
Bailan
Estudio
Estudiamos
Estudiaron
Viajo
Viajaron
Ceno
Buscaste
Explique
Llevo
Esperamos
Practicaron
Trabajo