tests by tati71 with the online test builder (174 tests)
Ranked by: number of candidates
1. Declension : Epithet adjectives with definite articles (34665 candidates)
2. Imperative (28633 candidates)
3. Infinitive (ohne zu, um zu, anstatt zu) (26918 candidates)
4. Aus, von - choose (20222 candidates)
5. Declension : Epithet adjectives (20066 candidates)
6. Passive voice (18598 candidates)
7. Questions (wie, wo, was...) (18381 candidates)
8. Adjectives (17254 candidates)
9. In / nach (16379 candidates)
10. Trotz / wegen (15288 candidates)
11. Job interview (15191 candidates)
12. Simple past/Imperfekt: Modals (14763 candidates)
13. Conjunctions : dass / weil (14529 candidates)
14. Pluperfect (11932 candidates)
15. Reflexive pronouns (10811 candidates)
16. Present : Dürfen/Können (10234 candidates)
17. Comparisons (10210 candidates)
18. Prepositions : bei / zu (10177 candidates)
19. Conjunctions (8987 candidates)
20. Personal pronouns (8919 candidates)