Machu Picchu .... (forget) for many years

In 1875, Animal bones and ancient black wall paintings were discovered by Marcelino de Sautoala in Spain.

Why was Machu Picchu deserted? Was there a ..... ( war / plague ) or terrible disease?

I'm not sure what it means. It ....(could/must) mean moon or sun.

I'm sure of it. They .... (must/could) mean "man" and "woman."

It's a mystery how the statues ....... (move) around the island of Rapa Nui.

People who claim to have seen it described as large, muscular, bipedal ape-like creatures, roughly 6–9 feet (1.8–2.7 m) tall, covered in hair described as black, dark brown, or dark reddish.

The temple walls of Angkor Wat ..... (cover) with sculptures.

The Sphinx was carved from a huge........ (block/statues) of stone

If you visit this place today, you’ll see many of the enormous stones still standing strong in a circular arrangement. It’s one of the world’s most famous prehistoric monuments located in England.

I don't know what it means. It ..... (must/could) mean "horse" or "travel."

Scientists think that the Sphinx ....... (build) by the pharaoh Khofre.