The correct interrogative is the one with the “?”! And it’s biblioteca, keep improving!
Since the words <em>las muchachas </em>means - the girls, we definitely need a plural verb. There are two plural verbs here - somos and son.
The word somos refers to us - Nosotros somos means We are.
Since the girls are third person plural (they), you need to use the verb B. son.
Las muchachas del club B. son de Estados Unidos y Mexico.
Yo soy, tu eres, el/ella/Usted es, nosotros somos, vosotros sois, ellos/ellas/Ustedes son
1. Es.
2. Están.
3. Es.
4. Están.
5. Es.
6. Somos.
7. Está.
8. Es.
9. Soy.
10. Es.
11. Eres.
12. Están.
13. Está.
14. Es.
15. Estamos.
16. Está.
