now, and i want to see the sun because they switch the lights on and off here. when they rebuild our houses, we can live in peace. translator: we all really want to return home. we want to return home alive. we all want to see our parents and families. reporter: there is little hope those wishes will come true anytime soon. russian troops have surrounded the complex, waiting for ukrinian soldiers to surrender, as food supplies dwindle. for the rest of mariupol, a humanitarian corridor opened leading west through russian-held territory to ukrainian-held zaporizhzhia. though, the mariupol mayor s office says that russians tricked people into boarding buses bound for a town in russian-occupied territory. cnn could not immediately verify the progress of evacuation efforts in the city. in a press conference in a kyiv underground station, president zelenskyy proposed a trade with russia, in exchange for ukr ukrainian civilians trapped in