You are in dificuilt
First you talk about this matter and tell them He heartly upset by this language and My work also suffer after that you can change but this is not solution, Because HR Manager can change the company after all I sugest if they are not change you should change self and use same language for them before leave the comapny I think you are young and you can do it by confidence
First you talk about this matter and tell them He heartly upset by this language and My work also suffer after that you can change but this is not solution, Because HR Manager can change the company after all I sugest if they are not change you should change self and use same language for them before leave the comapny I think you are young and you can do it by confidence