Toaworker,________fromthepointofviewofsocietyisnecessarylaborisfromhisownpointofviewvoluntaryplay.
Theywrotealetterofthanksto________hadhelpedthem.
TheNetherlandsistheonlycountryinEuropewhichpermitseuthanasia,________itisnottechnicallylegalthere.
法西斯的新闻事业属于什么阶段()。
Somelinguiststhoughtthatalllanguages______andwereruledbyacommongrammar.
