Choose between the preterite and the imperfect forms of the verbs based on the meaning and context of the sentence:

Yo __ (tener) seis años cuando mi familia __ (ir) al Mundo de Disney.

Choose between the preterite and the imperfect forms of the verbs based on the meaning and context of the sentence:

Los estudiantes __ (estar) en la clase cuando __ (llegar) la profesora.

Choose between the preterite and the imperfect forms of the verbs based on the meaning and context of the sentence:

Cuando Luis __ (ser) pequeño, él siempre __ (montar) en su bicicleta.

Choose between the preterite and the imperfect forms of the verbs based on the meaning and context of the sentence: 

Ana __ (correr) con los toros en el encierro, cuando una persona le __ (empujar: to push) a ella, y ella ___ (caerse: to fall down).

Choose between the preterite and the imperfect forms of the verbs based on the meaning and context of the sentence:

El equipo de béisbol ___ (jugar), cuando __ (empezar) a llover.