tests by valdyeuse with the online test builder (115 tests)
Ranked by: number of candidates
1. Future with shall and will (87419 candidates)
2. About To be and To have (61215 candidates)
3. Personal pronouns (38471 candidates)
4. Possessive case (28441 candidates)
5. Who and Which (28119 candidates)
6. Past perfect simple (24171 candidates)
7. How many - How much (23489 candidates)
8. Comparison (22019 candidates)
9. Present simple or continuous (20445 candidates)
10. Exclamations with How or What (17684 candidates)
11. Any - some - no (16418 candidates)
12. Too many or too much (12587 candidates)
13. Superlatives (12479 candidates)
14. Another - other - the others (12025 candidates)
15. If or When (11880 candidates)
16. Conditional present (11821 candidates)
17. Relative pronouns Who or Which (11486 candidates)
18. Past simple (10990 candidates)
19. Prefixes Over and Under (10570 candidates)
20. How long - For - Since (10238 candidates)