tests by soumaia1 with the online test builder (12 tests)
Ranked by: number of candidates
1. Negative form (20663 candidates)
2. Pronouns (15192 candidates)
3. Quizá, quizás, tal vez, acaso, A lo mejor (11731 candidates)
4. School (10001 candidates)
5. Questions (7250 candidates)
6. Frutas y verano (4310 candidates)
7. Once upon a time (4141 candidates)
8. Simple past : A great day (3593 candidates)
9. Por que/Por qué (2830 candidates)
10. Leave Madrid (2662 candidates)
11. Central America (2378 candidates)
12. Flowers of Central America (1122 candidates)