Question

pablo y tú son novios.
son novios.
juan es estudiante.
es estudiante.

Explanation:

These are Spanish grammar exercises replacing subjects with correct pronouns. For the plural subject "Pablo y tú" (Pablo and you), the plural subject pronoun "Nosotros" (We) is used. For the singular masculine subject "Juan", the singular masculine subject pronoun "Él" (He) is used.

Answer:

1. Nosotros son novios.
2. Él es estudiante.