The sentence is written incorrectly.
Correct form: Si, yo ENTIENDO.
Hope it helps.
1 rompió
2 dijo
3 vio
4 murio
Those are , im latin so dont worry they are correct
The best word to fill in the blank would be cubanos.
Cubana- a female cuban
Cubano- a male cuban
Cubanas- more than one female cubans
We are left with Cubanos which means more than one male cubans.
I really hope this helps.
a la rambla is the answer