The remains of a Roman settlement (was, were) found beneath the brewery.
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At the bottom of the hill there (is, are) a dangerous crossroads.
This pair of trousers (costs, cost) fifty dollars.
The fireworks (was, were) postponed to the following Saturday because of the bad weather.
Some came to obtain new power, some to laugh, and others to satisfy their ________.
A. humor
B. confidence
C. conflict
D. curiosity