4_. Oímos
5_. Creemos
6_. Oí
Las mochilas
Las estudiantes
Las clases
Los cuadernos
Los bolígrafos
El profesor
La clase
La mesa
El escritorio
El libro
1) D
2)A
3)B
Number 4 is a tricky one but I'll go with D
Hi there!
The answer would be preterite.
Remember preterite is a general thing that happened in the past while that lasted for a while, or long duration. Imperfect is without a specific time period in the past.
Hope this helps !
Answer:
ok just ask when you need help
Explanation: