For centuries, people have told stories of seeing the ruins of an ____ city in the rainforest of Honduras, Central America.
ancient
However, until ____, most people thought it was only a story.
recently
Then, a few years ago, a group of scientists flew over the forest in a plane. They _____ see how humans had made changes to the _____, which meant there had probably been a city there in the past.
could, landscape
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