1. Cayó
2. Olvidó
3. Quedaron
4. Dañaron
Juegan is the answer to the blank if it is regularly conjugated but in other forms it is something else if u need that just comment
Tu because If you put Mi or mis son rojos it says my are red which dosen't really make sense. Since you put tu in front of son (plual) it would be they are red.
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