tests by fouine18 with the online test builder (74 tests)
Ranked by: number of candidates
1. Must, needn't, mustn't (34945 candidates)
2. Will / would (32724 candidates)
3. Need +inf / need +ing (28724 candidates)
4. Wild animals (26508 candidates)
5. Birds (20709 candidates)
6. At, on, or in (19247 candidates)
7. Past tense,present perfect or pluperfect (17323 candidates)
8. Passive form (14892 candidates)
9. Modal verbs (14769 candidates)
10. Verbs (13784 candidates)
11. Relative pronoun (13512 candidates)
12. Sentences with 'wish' (11600 candidates)
13. Pronouns (10849 candidates)
14. Comparative (10290 candidates)
15. Sport (10235 candidates)
16. Quantities (9929 candidates)
17. Superlatives (9774 candidates)
18. Add the adverbs in the sentences (9651 candidates)
19. Active form (9422 candidates)
20. Jobs (9221 candidates)