your missing one of the answers because B. un instrumento de viento is a wind instrument, C. Un instrumento de aire is an air instrument and D. un instrumento de cuerda is a string instrument, so your missing Answer A
That’s what I only got idk about the rest
1. Un/El reloj
2. La silla
3. El lápiz
4. El mapa
5. El cuaderno
6. El bolígrafo
7. La tarea
8. La profesora
9. La regla
10. El alumno
11. El libro
12. Un pupitre
13. La pizarra
14. La tiza
15. I think “El borrador”
16. El profesor
17-20 I guess they’re right
Which of the following sentences could take the place of: Yo dije la verdad a mi madre./ Se la dije. / Le la dije. / La se dije.
Answer : Se la dije.
Explanation : The indirect object points out to the receiver of the action of the verb and the direct object concretes the action of the verb. In this sentence the direct object is "la verdad" and the indirect object is "mi madre". The pronoun "se" is an invariable pronoun that substitutes the indirect object as a variant of "le", when it is followed by another pronoun. The pronoun "se" does not change in terms of number or gender, unlike the direct object pronoun that does indicate gender and number, which is why the direct object pronoun has the same gender and number as the word it replaces, which it is "la verdad", which is a singular feminine noun and is replaced by "la". Then the combination of indirect object pronoun + direct object pronoun results: Se => mi madre + la => la verdad.