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 (28838 candidates)
4. Wild animals (26578 candidates)
5. Birds (20728 candidates)
6. At, on, or in (19276 candidates)
7. Past tense,present perfect or pluperfect (17433 candidates)
8. Passive form (14905 candidates)
9. Modal verbs (14853 candidates)
10. Verbs (13822 candidates)
11. Relative pronoun (13600 candidates)
12. Sentences with 'wish' (11614 candidates)
13. Pronouns (10863 candidates)
14. Comparative (10309 candidates)
15. Sport (10292 candidates)
16. Quantities (9929 candidates)
17. Superlatives (9777 candidates)
18. Add the adverbs in the sentences (9673 candidates)
19. Active form (9429 candidates)
20. Jobs (9283 candidates)