"Usted", is the most formal way to speak to others in spanish
Padres mean parents, so your parents would call your grandparents "padres".
Answer:
1. abriste (A)
2. caí (B)
3. mentimos (C)
4. bebió (B)
5. durmieron (A)
Explanatiion:
Conjugated the irregulars with their subjects. Said conjugation charts are usually available online in which specific Spanish words are shown conjugated to fit their subjects.
The answer would be.. " t<span>ú "</span>
