@chichan maraming online listening tests na for free lang, best thing is to sit on practice tests. during the exam, diba merong time dun per section to read the questions and choices, tapos sulat ka ng mga keywords; minsan kase yung first sinasabi ng dialog/speaker tapos andun sa choices, ay binabago niya in the end, parang trick lng, so sulat ka lng ng sulat ng keywords so that malaman mo kung ano yung final answer. make sure ma trace mo yung idea/thoughts ng conversation keywords. goodluck!