Question

complete the sentence with the word that best fits the overall meaning and tone. the tour guide claimed she could not put a price on the ______ masterpieces at the château de versailles. invaluable costly submit

Explanation:

To determine the best word, we analyze the context. The tour guide says she can't put a price on the masterpieces, implying they are of such great value that they can't be measured in monetary terms. "Invaluable" means extremely valuable or priceless, which fits the idea of not being able to assign a price. "Costly" simply means expensive, which doesn't convey the same sense of immeasurable value as "invaluable" does in this context.

Answer:

invaluable