Answer:
Avant de manger, il faut mettre la table.
Step-by-step explanation:
Avant de manger means before eating.
Mettre la table means to set the table.
Débarrasser la table means to clear the table which could also make sense but it said to fill in the blank with the French words that best complete the sentence.
Goûter la table means to taste the table which makes no sense at all.
Bouiller la table means to boil the table which do not make sense either.
Therefore, the answer is "Avant de manger, il faut mettre la table."
Hope it helped! Good luck.