Надо написать эти предложения в прошедшем времени.
Uther pendragon rules the country wisely.
Merlin makes powerfulmagic.
Soon after Athur is born,Merlin comes to the king with terrible news.
So,one dark night,Merlin takes the baby away.
The knight promises to take good care of the baby.
Soon the king falls ill and dies.
When the knights arrive,they see a great stone outside.
Arthur rides quickly to London,comes into the churchyad and easily pulls the sword out of the stone
All knights watch in surprise when arthur pushes the sword into the stone
The sword shines brightly in arthur*s hand.