Completar frases The Channel TunnelVersión en línea Fill the Gaps por jose tisner 1 " The Channel Tunnel " By 34 treacherous open sea . There was a radical idea to a tunnel connecting them , a hundred meters below the seabed , at stake billions of pounds and the of 8 , 000 tunnelist . If it worked it would be the world's longest undersea but with terrifying floods a terrific and financial meltdown . The channel tunnel would die with right from the start .