Necesitamos el pregunta compañero/a
Yea change the #8,#9 to “Estoy”
Change #10,#11 to “Es”
Change #12 to “Esta” and #13 to “Estoy”
The answer to your question is tenia
You use preterite to describe an action that took place and was fully done, Ex. José entro a la habitación, you can see John went into the room, he completed the action. On the other hand, imperfect tense doesn't specificate if the action was completed, Ex. José entraba a la habitación, it doesn't tell us if José fully entered the room.
