Answer:
3. Ana es más seria que su hermana.
4. Bea esta nerviosísima (porque mañana tiene un juego)
Explanation: If you don't want, you don't have to write the parenthesys.
Answer: Every proper sentence in Spanish must have a subject and a verb. There is also a proper place for subjects and verbs in a sentence. Begin a sentence with the subject (the person, place, or thing you're talking about). Follow that with the verb, and then the rest of the sentence (where, how, etc).
The answer is 19. Its actually 18 but the closest is 19.
