Jeff: I’ve been reading about the Loch Ness Monster. People say they’ve seen it, but it ____ dinosaur, right? Teacher: That’s a good point, Jeff. It ____ else entirely, like a large fish or even floating debris. However, some people believe it could have been a hoax or a misidentification. Kim: The Easter Island statues are fascinating too! They’re so huge. The ancient people there ____ techniques to move them. Teacher: Absolutely, Kim. They might ____ or even some kind of early engineering to transport the statues. It’s also possible that they may have relied on a large workforce working together. Jeff: And what about the Nazca Lines? They’re so intricate and large; you can only really see them from the sky. They ____ without some sort of aerial perspective, right? Teacher: That’s one of the biggest mysteries, Jeff. Some researchers believe ____ used simple tools and ropes to map out the lines on the ground. Others suggest that they ____ as a form of ritual or communication. Kim: I guess we’ll never know for sure, but it’s fun to imagine all the possibilities.

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