tests by fouine18 with the online test builder (74 tests)
Ranked by: number of candidates
1. Must, needn't, mustn't (34973 candidates)
2. Will / would (32809 candidates)
3. Need +inf / need +ing (28878 candidates)
4. Wild animals (26585 candidates)
5. Birds (20728 candidates)
6. At, on, or in (19276 candidates)
7. Past tense,present perfect or pluperfect (17446 candidates)
8. Passive form (14905 candidates)
9. Modal verbs (14854 candidates)
10. Verbs (13830 candidates)
11. Relative pronoun (13611 candidates)
12. Sentences with 'wish' (11614 candidates)
13. Pronouns (10867 candidates)
14. Comparative (10310 candidates)
15. Sport (10297 candidates)
16. Quantities (9929 candidates)
17. Superlatives (9781 candidates)
18. Add the adverbs in the sentences (9673 candidates)
19. Active form (9429 candidates)
20. Jobs (9287 candidates)