The most reliable starting point is Duolingo's official documentation for test-takers: The DET Handbook
: An official comprehensive PDF from Duolingo containing over 1,000 sample questions, including "Read and Complete" (fill-in-the-blank) items with an answer key . duolingo fill in the blanks pdf link
Cut each fill-in-the-blank sentence into a strip. Place correct ones in a "Done" box and wrong ones in a "Review" box. Review the wrong box every morning for a week. This mimics Duolingo’s internal algorithm (SM-2). The most reliable starting point is Duolingo's official
: This comprehensive booklet includes over 1,000 sample questions across all test types, including fill-in-the-blank exercises and an answer key. The DET Handbook Review the wrong box every morning for a week
Sites like Arno offer free PDF printouts specifically for interactive listening and production subscores. Tips for Solving Fill in the Blanks
These documents are hosted on platforms like Scribd and specialized test-prep sites:
Communities like and specific language subreddits (e.g., r/learnspanish ) are goldmines. Users often create Google Docs or PDF printouts of vocabulary lists and sentence structures.