tests by anijul with the online test builder (54 tests)
Ranked by: number of candidates
1. Extreme adjectives (7398 candidates)
2. Much, more, fewer, less (5895 candidates)
3. No matter (4959 candidates)
4. Compromise or commitment (4927 candidates)
5. There are, there will be, there were (4169 candidates)
6. For - To - In order to (4009 candidates)
7. There is - are - was - were (3211 candidates)
8. To wish - If only - To hope (2880 candidates)
9. Is ,has or genitive (2278 candidates)
10. Have to (2046 candidates)
11. Almost or Hardly (1958 candidates)
12. Gerund or participle (1831 candidates)
13. By the time (1766 candidates)
14. About tenses (1644 candidates)
15. Adjectives and comparison (1626 candidates)
16. Quite a few, quite a bit, quite a lot (1626 candidates)
17. Who else - What else (1610 candidates)
18. Used to - to be used to - to get used to (1492 candidates)
19. Never, not only, under no circumstances, no sooner (1401 candidates)
20. Article The (1244 candidates)