Final answer:
To form possessive adjectives in Spanish, use the subject pronouns. For example, 'nuestro' means 'our' and is used with the subject pronoun 'nosotros' (we). 'Mi' means 'my' and is used with the subject pronoun 'yo' (I). 'Sus' means 'his/her/their' and is used with the subject pronoun 'ella' (she/they). Lastly, 'tu' means 'your' and is used with the subject pronoun 'tú' (you).
Step-by-step explanation:
1. Nuestro profesor de ciencias es muy inteligente. (nosotros)
2. Mi compañera de cuarto. (yo)
3. Sus hermanos son inteligentes y simpáticos. (ella)
4. ¿La esposa de Darío es hermana? (tú)
Learn more about Possessive adjectives