Why are canopy tours a good way to visit the monteverde cloud forest?

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"

Check all that correctly apply to each verb form. él va 1st person 2nd person 3rd person singular plural next question ask for

Hola, mario: yo (1) (estar) en la universidad. la clase de anatomía (2) (ser) de cinco a siete. mi hermano y su esposa (3) (venir) a cenar esta noche. a las siete (yo) (4) (blank) (correr) al supermercado (grocery store). tú (5) (blank) (tener) que regresar a casa antes de las siete. hasta pronto. gracias, valeria