Decide if the following sentence is grammatically correct or incorrect. hubieron tantos problemas el ano pasado!

What was the important event between the united states and cuba in 1991? a.assigned clinics b.greater number of tourists c.seizure d.increased import and export flow

My spanish teacher said this to me.. look at the ending on your verb. you need to make it agree with "yo" this is my sentence- sí yo estudiar español en la escuela how do i make it agree with "yo"

The agency gave summer and jake what clue?