The exercise itself is in German; the explanation pages it links to are in Turkish.
Akkusativ: bestimmter & unbestimmter Artikel (accusative case)
In the Akkusativ only the masculine article changes; feminine, neuter and plural stay the same. You will work out the correct form yourself in the exercise. All exercise content is in German.
Recognise: match the Nominativ phrase with its Akkusativ form. Which ones do not change?
Matched: 0 / 10Quick answer
What is in the "Akkusativ: bestimmter & unbestimmter Artikel" exercise?
The "Akkusativ: bestimmter & unbestimmter Artikel" exercise has 5 steps with 50 questions in total: 10 matching items, 30 multiple-choice questions and 10 gap-fill items.
The steps in order: Match · der → den · ein → einen · Richtig/Falsch · Write.
You get instant feedback after every answer; the exercise runs in your browser, is free and needs no sign-up or installation.
Where can I study "Akkusativ: bestimmter & unbestimmter Artikel"?
The explanation for this exercise is on the page The German Accusative Case – Explanation (in Turkish). Read the rule there, then reinforce it with the 50 questions on this page.