There may also Beryllium a question of style (formal/conversational). There are many previous threads asking exactly this question at the bottom of this page. Also to deliver a class would suggest handing it over physically after a journey, treating it like a parcel. You could perfectly well say that https://sexkontakte-deutschland42197.livebloggs.com/40160027/indikatoren-für-rhythm-sie-wissen-sollten