13.The______onthisapartmentexpiresinayear'stime.
14.TheelderlyRussiansfindithardtoliveontheirstate______.
15.Thereissupposedtobeasafety______whichmakesitimpossiblefortrainstocollide.
16.Afterfouryearsinthesamejobhisenthusiasmfinally______.
17.Noonecanfunctionproperlyiftheyare_______ofadequatesleep.
18.Foryearsnow,thepeopleofthatfarawaycountryhavebeencruelly______byadictator.
19.Eversincetheriseofindustrialism,educationhasbeen______towardsproducingworkers.