English Grammar Master: Grammar Tenses – New Edition (Intermediate / Advanced Level: B1-C1 – Listen & Learn) by Dorota Guzik 2 h 16 min
English in Situations: Business English – New Edition (16 Topics – Proficiency level: B2 – Listen & Learn) by Anna Kicinska, Dorota Guzik, Joanna Bruska 2 h 12 min
