Look for platforms that provide explanations or "commentary" alongside the answers, rather than just the raw text.
If the GDZ shows a comma you didn't include, don't just add it. Look back at the rule in the "Theory" book to understand why it’s there. Look for platforms that provide explanations or "commentary"
Transcription can be tricky (remembering which vowels are "softened"). Look for platforms that provide explanations or "commentary"