Verbs ending in -ir that undergo stem changes in the present tense also under go stem changes in the preterite. These verbs have a stem change in the second person formal singular (usted), third person singular (él, ella) and third and second person plural (ellos, ellas and ustedes) forms.
Answer:
ella descansara mañana
ellos llegaran tarde hoy
ella navega por el oceano
Explanation:
In my opinion abran would be better but the rest are good words too because its saying open your gifts everyone and its makes more sense then saying den (give) or da
Nosotros salimos trade para las vacasiones.