Give the correct form of the appropriate verb, saber or conocer, which would be used in writing the fol- lowing sentences in Spanish.

12. _______
13. _______
14. _______
15. _______
16. _______
Maria knew everyone.
Because he had already seen the movie, he knew what happened? The student knows the answer.
He knows Bach’s music.
Do you (tú) know who is singing?

12. conocio

13. habia visto, supo
14. saben
15. sabe
16. conoces

thank you

12. Saber

13. Saber
14. Conocer
15. Sabe
16. Sabes

Explanation:
To determine whether to use "saber" or "conocer" in each sentence, we need to understand their meanings and usage.

1. "Saber" is used to indicate knowledge of facts, information, skills, or how to do something. It is used when the speaker knows something or knows how to do something. In sentence 12, we are talking about Maria knowing everyone, which is a fact or information she knows, so we use "saber".

2. In sentence 13, "he had already seen the movie, he knew what happened", we are talking about knowing a fact or information about what happened in the movie. Therefore, we use "saber".

3. "Conocer" is used to indicate familiarity with people, places, or things. It is used when the speaker is acquainted or familiar with someone or something. In sentence 14, we are talking about someone knowing Bach's music, which implies familiarity with Bach's music. Hence, we use "conocer".

4. In sentence 15, "He knows Bach's music", we are still talking about familiarity with Bach's music, so we use "sabe".

5. Sentence 16 is a question in the second person singular (tú). The verb "saber" should be conjugated accordingly, giving us "sabes". The question is asking whether the person is familiar with or knows who is singing.