1. para el martes, armando ya las invitaciones por correo electrónico.
2. ramón los dos últimos cuadros para el mes de octubre.
3. lucía su última escultura antes de la navidad.
4. emilio sus problemas personales para enero o febrero y los retratos para la exposición de la primavera.
5. armando y manuela otras obras para la exposición.

1. habrá enviado

2. habrá terminado

3. habrá completado

4. habrá resuelto / habrá preparado

5. habrán conseguido

Explanation:

The exercise aims for you to practice the Future Perfect by conjugating the appropriate verb in each sentence.

The future perfect tense is used to describe what will have happened in the future before a different action takes place, or by a specific time.

Like perfect tenses, the future perfect is formed by using the auxiliary verb HABER with the past participle. In this case, HABER is conjugated in the future tense because of the future perfect.

yo habré

tú habrás

él/ella habrá

nosotros habremos

vosotros habréis

ellos/ellas habrán

Here is the translation of the complete sentences:

1. By Tuesday, Armando will have already sent the invitations by email.

2. Ramón will have finished the last two paintings for the month of October.

3. Lucia will have completed her last sculpture before Christmas.

4. Emilio will have solved his personal problems for January or February and will have prepared the portraits for the spring exhibition.

5. Armando and Manuela will have obtained other works for the exhibition.

answer is a: las

explanation:

the reason for this answer is becouse it's a plural frase which talks more then one thing