Answer:
Question 1: Yo conozce a mi profesora de historia ayer.
Question 2: Nosotros sabemos la verdad.
Question 3: Mi hermano conozco a una persona famosa el ano pasado.
Explanation:
Each of these are the past tense of the word at the end of the sentences.
Answer:
I think its "devolver", as that means to return an item.
Explanation:
<span>Creo que la respuesta es B
</span><span>Espero que esto haya ayudado!</span>
Con frecuencia is the answer
Hope this helps