<h2>
Answer:</h2>
<em>Carlos, ¿Se </em><em>acuerda </em><em>de cuando fuimos de vacaciones a Cancun hace dos años?</em>
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<h2>
Explanation:</h2>
This question stands for reflexive pronouns. We use Reflexive Pronouns with a verb to point out that a person carries out an action to or <em>for himself</em> or <em>herself. </em>The action here is to remember something. Since a person is addressing the question to Carlos and uses se, then this matches the subject pronoun usted (formal you). Then the conjugation of acordar must match the third person singular, which is acuerda.
i dont know what this is i am very sorry
We need more details to answer this but... It says to write a paragraph based on what you see. Use what you learned in class to write it.
If you need me to write the paragraph, I can, but I need to know what you learned in school to do that...