tests by valdyeuse with the online test builder (115 tests)
Ranked by: number of candidates
1. Future with shall and will (87466 candidates)
2. About To be and To have (61528 candidates)
3. Personal pronouns (38770 candidates)
4. Possessive case (28492 candidates)
5. Who and Which (28441 candidates)
6. Past perfect simple (24236 candidates)
7. How many - How much (23498 candidates)
8. Comparison (22191 candidates)
9. Present simple or continuous (20521 candidates)
10. Exclamations with How or What (17820 candidates)
11. Any - some - no (16458 candidates)
12. Too many or too much (12603 candidates)
13. Superlatives (12516 candidates)
14. Another - other - the others (12060 candidates)
15. If or When (11920 candidates)
16. Conditional present (11893 candidates)
17. Relative pronouns Who or Which (11566 candidates)
18. Past simple (11364 candidates)
19. Prefixes Over and Under (10619 candidates)
20. How long - For - Since (10267 candidates)