sentences:  In 1921, he left Chekhov's school to join "Molodye Mastera" studio, under Illarion Pevtsov, a well-connected figure in Soviet film and theatre.There, with his elder brother Vitaly Babochkin, Boris worked his first professional season on stage.In the following six years he played seasonal gigs on stage with various troupes in Moscow and Saratov, then in Samarkand and Bishkek in Central Asia, and then in Voronezh, Mogilev in Belarus, and Berdichev in Ukraine.