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

41. Reduced forms (4015 candidates)
42. Modal auxiliaries in the past. (5113 candidates)
43. To see and to hear + ing/ bare infinitive (6456 candidates)
44. Word Stress (2) (2434 candidates)
45. Word Stress (1) (3022 candidates)
46. Pronunciation of the final sound -ED (4265 candidates)
47. A few difficulties with pronunciation (3432 candidates)
48. Vocabulary: doing things... (4195 candidates)
49. Vocabulary: Taking a holiday (4357 candidates)
50. Can/ could/ can't and equivalents (1321 candidates)
51. By? By the time? Until? (6176 candidates)
52. Made of? from? with? or out of? (6200 candidates)
53. Standard or casual registers? (2945 candidates)
54. Conditions (2431 candidates)
55. Vocabulary: belonging and possessing (455 candidates)
56. Subject-verb inversions (4086 candidates)
57. Word order: no subject - verb inversion (650 candidates)
58. To be to? or To have to? (907 candidates)
59. Infinitive (without 'to') (245 candidates)
60. Infinitive form (4960 candidates)