One thing I find problematic (and frustrating even) about the dictation exercises is the intonation of the voice after punctuation (e.g., commas, periods, question marks, and even exclamation points) is highly inconsistent with natural speech. For example, typically speakers pause briefly after a comma, and the voice is raised sightly (or even demonstrably) after a question has been posed. These common features of natural/normal speech are too often absent and I think that is a major flaw in Kwiziq dictation exercises.
Pati Ecuamiga