What is the plural of una turista?

Which of the following is not described by gonzalo fernandez de oviedo y valdes in la historian general y natural de las indias

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"

Identify the three main regions of venezuela. la sierra andina patagonia los llanos la amazonía yucatán la guayana venezolana