A past-tense verb, meaning it already happened. If it was a present-verb, it would be build.
Answer:
Ernest Shackleton's failed quest to reach the South Pole is still a management tutorial in how to face repeated crises.
The correct answer of the given question above would be the third option. Here is the complete answer. In "The World is Too Much with Us," what accounts for people's being "out of tune" is <span>their over-involvement with economic aspects of life. Hope this answers your question.</span>