tests by soumaia1 with the online test builder (12 tests)
Ranked by: number of candidates
1. Negative form (20529 candidates)
2. Pronouns (15144 candidates)
3. Quizá, quizás, tal vez, acaso, A lo mejor (11721 candidates)
4. School (10000 candidates)
5. Questions (7237 candidates)
6. Frutas y verano (4304 candidates)
7. Once upon a time (4122 candidates)
8. Simple past : A great day (3590 candidates)
9. Por que/Por qué (2823 candidates)
10. Leave Madrid (2648 candidates)
11. Central America (2374 candidates)
12. Flowers of Central America (1120 candidates)