two kids ( play) in a mine in eastern Washington State when they ( find) the carpus of a mastodon. Tests later ( show) that it ( be) 4,5 million years old. It ( be) one million years older than the fossil which an archaeologist ( find) two years before in the same place.
When they(spot) the wreck of "The Revenge", John Ruskin and his crew ( sail) in peaceful water in the Caribbean Sea. John ( never/hear)of the dreaded pirate Blackbbeard and his ship. Among the sunken treasures, John and his crew ( find) guns, cannonballs and a bell dated 1709. They also ( discover) that the pirates ( hide) a trunk full of jewels in the captain´s cabin.