Answer:
8. Carolina abre la maleta.
9. Yo abro las ventanas.
10. Nosotros abrimos los libros.
11. Usted abre el cuaderno.
12. Tú abres la ventana.
13. Ustedes abren las maletas.
14. Los muchachos abren los cuadernos.
Explanation:
According to the context it is requested to combine the verb "Abrir" with the different sentences that are there, so it is important identifying the narrator and the time that a sentence indicates is the first step that must be taken. this is very important to be able to conjugate the verbs, and that these have concordance with what is being expressed
