Answer:
The right answer is, A. Hayamos ayudado.
*Me alegro de que nosotros hayamos ayudado a organizar este evento.
Explanation:
To complete the sentence, they give us the verb that we must use, so we must identify the person in the sentence and the verb tense to be able to conjugate it in a logical way and that it has a relationship with what is being expressed.
I tried to help but i dont really get your question
Si :necesitan una reservación es lógico, no tendrían donde hospedarse
Answer: ¿De donde ERES tú?
Las ESTACIONES del año...
Explanation: I speak Spanish