Answer:
1. Nora y yo comimos la cena en la cabaña ayer.
2. Tú caminabas hacia el elevador cuando la puerta se cerró.
3. Ustedes llegaron al hostal a las tres de la mañana.
4. Yo reservé la habitación individual el mes pasado.
Explanation:
To complete the previous sentences, using the verbs that are, we must identify the narrator, the gender, the number and the time indicated by each sentence as the first step. This is very important to be able to logically conjugate the verbs, and that these have concordance with what is being expressed.
