Change the Verb from the imperfect to the prefer it or vice versa.

Please help!

1. Ayer estudié por la noche.

2. ¿Que hacían ustedes cuando empezó a llover?

3. Mis parientes de Colorado venían todos los veranos.

4. Primero anduve por el parque; luego encontré a Lola.

5. El año pasado viajamos por Sudamérica.

6. Yo dormía ocho horas cuando tenía once años.  

Explanation:

In Spanish the past tense is the one where the actions carried out in the past tense are described, and the imperfect tense is the one where the actions in the past that are still part of the present are described, therefore in the previous activity we must identify at what time this each prayer and thus turn it into the opposite time that we are being asked; that is, if a sentence is in the past tense we must transform it to imperfect and vice versa.