tests by here4u with the online test builder (627 tests)

21. Verbs in the -ing form, or not? (5547 candidates)
22. Verbs with two object complements (3132 candidates)
23. Vocabulary: some time/ sometime/ sometimes (4392 candidates)
24. Doubling the final consonant, or not? (5063 candidates)
25. Vocabulary: steal or rob? remember or remind? (4782 candidates)
26. Civilisation: Thanksgiving and Black Friday (2808 candidates)
27. Idioms: the weather (2710 candidates)
28. Concession (4842 candidates)
29. Idioms: men and women (298 candidates)
30. Reduced forms (3914 candidates)
31. Modal auxiliaries in the past. (4676 candidates)
32. To see and to hear + ing/ bare infinitive (6326 candidates)
33. Word Stress (2) (2212 candidates)
34. Word Stress (1) (2744 candidates)
35. Pronunciation of the final sound -ED (3911 candidates)
36. A few difficulties with pronunciation (3296 candidates)
37. Vocabulary: doing things... (4146 candidates)
38. Vocabulary: Taking a holiday (4310 candidates)
39. Can/ could/ can't and equivalents (1038 candidates)
40. By? By the time? Until? (6039 candidates)