TOEFL Listening: ETS-TOEFL听力机经 - 8T38WL2Y9FPOOM2EP$

What is the professor's attitude about the water repairs done at Fallingwater? A. They would inevitably have been needed because of the building's age. B. They should not have taken as long as they did. C. They could have been avoided with adequate planning. D. They need to be checked on a more regular basis by structural experts.