tests by laure95 with the online test builder (42 tests)
Ranked by: number of candidates
1. Could/Couldn't (308113 candidates)
2. Can/Must/Should (293727 candidates)
3. Can and can't (284657 candidates)
4. Must or mustn't (228606 candidates)
5. Like or would like (142598 candidates)
6. Should or shouldn't ? (123830 candidates)
7. Passive voice in past tense (122952 candidates)
8. Did, was or were (122282 candidates)
9. If clauses (106609 candidates)
10. Be allowed to (96722 candidates)
11. During, for or since (76483 candidates)
12. Present perfect or past perfect (68037 candidates)
13. Sentences : Like and would like (63939 candidates)
14. Infinitive proposition (43708 candidates)
15. Repeated comparative (38833 candidates)
16. Ago and past tense (34311 candidates)
17. Relative pronouns (31798 candidates)
18. This or these (26796 candidates)
19. Comparative (26103 candidates)
20. Questions and past tense (25385 candidates)