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

Explanation:

To determine the correct word, we analyze the context. The phrase "could not put a price on" implies the masterpieces are of such great value that they can't be priced, which matches "invaluable" (meaning extremely valuable, not able to be valued with money). "Costly" means expensive, but the sentence emphasizes the inability to assign a price due to their worth, not just being expensive.

Answer:

invaluable