Test Angielski B2/Science and technology

There is still no adequate (explain) why, several thousand years ago, cultures in both Egypt and South America saw the (introduce) of pyramids. Was it coincidence? Many (science) believe that it was, and state that there is no (possible) at all that people from two distance continents traded information on (build) techniques. However, some (revolution) therories in recent years, based on the (discover) that the two cultures also share key myths, legends and beliefs, suggest that the (appear) of pyramids on opposite sides of thr world was no coincidence at all. One (research) working on this, Crystal Davis, said: “The (important) of finding out the truth here cannot be exaggerated. It could change out whole understanding of the history of the world.”