____(situate) at 3,500 metres,La Paz is the highest capital in the world.One road in particular,2.____ goes north from La Paz,is considered the 3.______(danger) road in the world.Although there is not a lot of traffic,on average,one vehicle comes off the road every two 4. _______(week) so that many people die of the accidents.5.________ ,thanks to Timoteo Apaza,a gentle 46-year-old man,the death toll 6. ________ (fall).Every morning he climbs up to the bend 7. ______a large circular board in his hand,takes up his place and 8. ________(direct) the traffic.He works as a human traffic signal.He is a volunteer so no one pays him for it.Sometimes some drivers give him a tip,so that he has just enough money to live on.But often they just pass by,9. ________(take) the human traffic signal for granted.He doesn’t regret because he thinks it is his mission to help 10. _______(other).