Translated: I don’t think that I... go to the party tonight
If the ... was supposed to be a fill in the blank, then the sentence would be: No creo que yo puedo ir a la fiesta esta noche.
En las vacaciones con mi amiga Laura nos bañábamos todo el tiempo en la piscina de Marcos
Punta del Este is famous for its casinos, and its beach is nice, too. I'm not too sure about the dominos part, but it may have been used as a pastime