1.) London is situated in southeastern England along the Thames River. 2.)The river flows from the east to west through the city. 3.)These ships bring all kinds of goods for London's market from all countries around the world. 4.)At the corner of Hyde Park, anyone is free to stand up and tell his ideas to the passers-by. 5.)The bank on the north of Thames lies the city, the busiest part of London.
I'm not sure if you meant "The boys are pulling the rope" or "The boy is pulling the rope" but the answer is either "The rope is being pulled by the boys" or "The rope is being pulled by the boy" respectively.