The correct answer can be Amiga
That means a friend and would fit the sentence Maria es mi amiga de la escuela. Siempre comemos juntas.
Which translates to "Maria is my friend from school. We always eat together."
The answer is "an infinitive verb".
Acabar de + infinitive is used to express an action that has ended prior the enunciation of the sentence.
Answer:
Ellos me preguntaron cómo llegar a un taller mecánico.
Hope this helps!
The answer would be ¡Que duerman bien!
Which means, "Sleep well."