Use the correct form of the verb "ser" to complete each sentence.

1. El libro grande. (The book is big.)
2. Las canciones muy buenas. (The songs are very good.)
3. Yo estudiante. (I am a student.)
4. Tú maestro. (You are a student.)
5. Nosotros amigos. (We are friends.)
6. Ella enfermera. (She is a nurse.)
7. Ustedes guapos. (You guys are handsome.)
8. Usted doctor. (You are a doctor.)
9. El perro gordo. (The dog is fat.)
10. Ella mi abuela. (She is my grandmother.)
11. Yo de los EEUU. (I am from the US.)
12. Tú argentino. (You are argentinian.)
13. Mi amigo alto. (My friend is tall.)
14. la una de tarde. (It is one in the afternoon.)
15. las cinco de la mañana. (It is five in the afternoon.)
16. Yo flaco. (I am skinny.)
17. Paco y José trabajadores. (Paco and José are hardworking.)
18. Mi hermano loco. (My brother is crazy.)
19. Ellas actrices. (They are actresses.)
20. Tú y yo hermanos. (You and I are brothers.)