tests by laure95 with the online test builder (42 tests)
Ranked by: number of candidates
1. Could/Couldn't (307939 candidates)
2. Can/Must/Should (293500 candidates)
3. Can and can't (284558 candidates)
4. Must or mustn't (228482 candidates)
5. Like or would like (142551 candidates)
6. Should or shouldn't ? (123584 candidates)
7. Passive voice in past tense (122929 candidates)
8. Did, was or were (122083 candidates)
9. If clauses (106594 candidates)
10. Be allowed to (96644 candidates)
11. During, for or since (76430 candidates)
12. Present perfect or past perfect (67944 candidates)
13. Sentences : Like and would like (63880 candidates)
14. Infinitive proposition (43676 candidates)
15. Repeated comparative (38744 candidates)
16. Ago and past tense (34287 candidates)
17. Relative pronouns (31756 candidates)
18. This or these (26776 candidates)
19. Comparative (26101 candidates)
20. Questions and past tense (25378 candidates)