If you are looking for downloadable practice materials, these platforms offer comprehensive worksheets and official guides:
While the Duolingo app is great for daily streaks, using physical or PDF worksheets offers unique benefits:
: Arno provides high-quality PDF Print Outs specifically designed for DET prep. Their blog also features a collection of 50 Fill in the Blanks Questions with Answers that you can use to drill specific skills.
: Scribd hosts numerous user-uploaded practice sheets such as the Duolingo Reading Fill in The Blanks and Worksheet Fill in the Blanks . These often categorize exercises by difficulty levels (Beginner, Intermediate, Advanced).