This worksheet helps students practice identifying Spanish subject pronouns by converting names and noun phrases into their corresponding pronouns.

Task Explanation:

The worksheet asks you to identify the corresponding subject pronouns in Spanish for each given phrase. Subject pronouns are used to replace nouns and indicate who is performing the action in a sentence. In Spanish, subject pronouns can be singular or plural and vary based on gender and formality.

Solution:

Below is the completed worksheet with the correct subject pronouns for each phrase:

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#### 1. Marta y ella
- Answer: Ellas
- Explanation: "Marta" is a female name, and "ella" also refers to a female. Together, they are both feminine, so the plural feminine pronoun is ellas.

#### 2. Marta y Juan
- Answer: Ellos
- Explanation: "Marta" is feminine, and "Juan" is masculine. When combining a masculine and a feminine noun, the masculine plural pronoun ellos is used.

#### 3. Marta y yo (Graciela)
- Answer: Nosotras
- Explanation: "Marta" is feminine, and "yo" (Graciela) is also feminine. Since both are feminine, the first-person plural feminine pronoun is nosotras.

#### 4. Usted y yo (¿?)
- Answer: Nosotros/Nosotras
- Explanation: "Usted" is formal and can refer to either masculine or feminine. "Yo" can be either masculine or feminine depending on the context. If Graciela is feminine, use nosotras; if it's masculine, use nosotros.

#### 5. Sancho
- Answer: Él
- Explanation: "Sancho" is a male name, so the singular masculine pronoun is él.

#### 6. Tú y yo (Mario)
- Answer: Nosotros
- Explanation: "Tú" is informal and can be either masculine or feminine. "Yo" (Mario) is masculine, so the first-person plural masculine pronoun is nosotros.

#### 7. Luisa y Marisela
- Answer: Ellas
- Explanation: Both "Luisa" and "Marisela" are feminine names, so the plural feminine pronoun is ellas.

#### 8. Tú y tú y tú
- Answer: Vosotros/Vosotras
- Explanation: All three "tú"s are informal and can be either masculine or feminine. If referring to males, use vosotros; if females, use vosotras.

#### 9. Mariana
- Answer: Ella
- Explanation: "Mariana" is a female name, so the singular feminine pronoun is ella.

#### 10. Los estudiantes
- Answer: Ellos
- Explanation: "Los estudiantes" is a plural masculine noun, so the plural masculine pronoun is ellos.

#### 11. La chica y el chico
- Answer: Ellos
- Explanation: "La chica" is feminine, and "el chico" is masculine. When combining a masculine and a feminine noun, the masculine plural pronoun ellos is used.

#### 12. La clase y yo (Sra.)
- Answer: Nosotras
- Explanation: "La clase" is feminine, and "yo" (Sra.) is also feminine. The first-person plural feminine pronoun is nosotras.

#### 13. La clase y tú
- Answer: Vosotros/Vosotras
- Explanation: "La clase" is feminine, and "tú" is informal and can be either masculine or feminine. If referring to males, use vosotros; if females, use vosotras.

#### 14. La clase y usted
- Answer: Ustedes
- Explanation: "La clase" is feminine, and "usted" is formal and can be either masculine or feminine. The plural formal pronoun is ustedes.

#### 15. Tú (Rosita) y ella
- Answer: Nosotras
- Explanation: "Tú" (Rosita) is informal and feminine, and "ella" is also feminine. The first-person plural feminine pronoun is nosotras.

#### 16. Las estudiantes
- Answer: Ellas
- Explanation: "Las estudiantes" is a plural feminine noun, so the plural feminine pronoun is ellas.

#### 17. El novio
- Answer: Él
- Explanation: "El novio" is a masculine noun, so the singular masculine pronoun is él.

#### 18. La amiga
- Answer: Ella
- Explanation: "La amiga" is a feminine noun, so the singular feminine pronoun is ella.

#### 19. You, my friend
- Answer: Tú
- Explanation: "You" in an informal context is tú.

#### 20. You, my principal
- Answer: Usted
- Explanation: "You" in a formal context is usted.

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Final Answer:

Here is the completed worksheet with all answers:

1. Ellas
2. Ellos
3. Nosotras
4. Nosotros/Nosotras
5. Él
6. Nosotros
7. Ellas
8. Vosotros/Vosotras
9. Ella
10. Ellos
11. Ellos
12. Nosotras
13. Vosotros/Vosotras
14. Ustedes
15. Nosotras
16. Ellas
17. Él
18. Ella
19. Tú
20. Usted

Final Answer:
\boxed{
\begin{array}{ll}
1. & \text{Ellas} \\
2. & \text{Ellos} \\
3. & \text{Nosotras} \\
4. & \text{Nosotros/Nosotras} \\
5. & \text{Él} \\
6. & \text{Nosotros} \\
7. & \text{Ellas} \\
8. & \text{Vosotros/Vosotras} \\
9. & \text{Ella} \\
10. & \text{Ellos} \\
11. & \text{Ellos} \\
12. & \text{Nosotras} \\
13. & \text{Vosotros/Vosotras} \\
14. & \text{Ustedes} \\
15. & \text{Nosotras} \\
16. & \text{Ellas} \\
17. & \text{Él} \\
18. & \text{Ella} \\
19. & \text{Tú} \\
20. & \text{Usted} \\
\end{array}
}