tests by crayon98 with the online test builder
(7 tests)
Ranked by: number of candidates
1. 'obwohl', 'obgleich', 'trotzdem' (11117 candidates) 
2. Clothes (9956 candidates)
3. Home (3815 candidates)
4. Auxiliary: werden (1354 candidates)
5. After (1268 candidates)
6. Prepositions (1033 candidates)
7. Relative pronouns (1017 candidates)
(7 tests) Ranked by: number of candidates
1.
'obwohl', 'obgleich', 'trotzdem' (11117 candidates) 2.
Clothes (9956 candidates) 3.
Home (3815 candidates) 4.
Auxiliary: werden (1354 candidates) 5.
After (1268 candidates) 6.
Prepositions (1033 candidates) 7.
Relative pronouns (1017 candidates) 