Needs assessment (language teaching) ; English as a second language; ESL; TESOL ; Gottesdienst (Kommunikationssituation) ; Religious service (communication situation) ; Church (communication situation) ; Multikulturalität; Diversität, soziale; Vielfalt, kulturelle; Diversity, cultural; Multiculturalism; Transculturalism ; Auswanderer; Emigrants; Migrant; Aussiedler; Gastarbeiter; Arbeitsmigranten; Immigrants/Emigrants ; Second language acquisition (pragm.) ; Zweitspracherwerb (pragm.) ; Interactionist hypothesis (second language acquisition) ; Conversational analysis (second language acquisition) ; Canada (English language in) ; Kanada (engl. Sprache in) ; English in Canada ; Mandarin; Kantonesisch; Cantonese; Putonghua; Sinitic; Hakka; Yue; Chinese