Some sellers on or Kindle offer the Honsatsu (main textbook) with integrated answers, but these are region-locked. Check the Japanese Amazon Kindle store.
Sentence transformation.
These lessons cover the requirements for the exam, focusing on foundational grammar and daily vocabulary. Description Sentence Patterns Basic grammar structures introduced in each lesson. Example Sentences Question-and-answer dialogues illustrating practical usage. Renshuu A/B/C minna no nihongo lesson 1 to 25 pdf answers