Most Bulgarian bookstores (Ciela, Hermes, Booktrading) or online with the audio access.
Matura Companion for Bulgaria Level B2 answer key is available as a specialized resource for students and teachers preparing for the Bulgarian State Matriculation Exam (DZI). The full answer keys, which include solutions for vocabulary, grammar, and listening sections, are primarily hosted on academic document platforms. Full Answer Key Resources
Petar, too, seemed conflicted. “We could use this,” he said, “and guarantee top marks. Then we could apply to the best universities without a hitch.”
Use a red or blue pen to mark wrong answers. Do not just write the correct letter – write the correct word or phrase.