tests by here4u with the online test builder (670 tests)

21. Possession - vocabulary (3590 candidates)
22. Focus sur SHOULD/ OUGHT TO: necessity and duty. (3566 candidates)
23. Resultatives (2738 candidates)
24. Confusion : to make up for something? to catch up with someb (23 candidates) [Being reviewed]
25. Focus on MUST: an ambiguous modal auxiliary. (3822 candidates)
26. Focus on MAY: Possibility and permission. (3797 candidates)
27. Focus on CAN: incapacity and impossibility. (4380 candidates)
28. Recycling waste... - Vocabulary (2878 candidates)
29. Likely/unlikely - Willing/ unwilling (107 candidates) [Being reviewed]
30. 'Whose' and idiomatic possessive forms... (4410 candidates)
31. Preference: I'd rather go.../ I'd rather you went (5116 candidates)
32. Verbs in the -ing form, or not? (5635 candidates)
33. Verbs with two object complements (3190 candidates)
34. Vocabulary: some time/ sometime/ sometimes (4513 candidates)
35. Doubling the final consonant, or not? (5196 candidates)
36. Vocabulary: steal or rob? remember or remind? (4874 candidates)
37. Civilisation: Thanksgiving and Black Friday (2913 candidates)
38. Idioms: the weather (2768 candidates)
39. Concession (5065 candidates)
40. Idioms: men and women (311 candidates)