tests by here4u with the online test builder (685 tests)

41. Modal auxiliaries in the past. (5083 candidates)
42. To see and to hear + ing/ bare infinitive (6450 candidates)
43. Word Stress (2) (2431 candidates)
44. Word Stress (1) (3009 candidates)
45. Pronunciation of the final sound -ED (4235 candidates)
46. A few difficulties with pronunciation (3419 candidates)
47. Vocabulary: doing things... (4191 candidates)
48. Vocabulary: Taking a holiday (4355 candidates)
49. Can/ could/ can't and equivalents (1251 candidates)
50. By? By the time? Until? (6161 candidates)
51. Made of? from? with? or out of? (6191 candidates)
52. Standard or casual registers? (2493 candidates)
53. Conditions (2426 candidates)
54. Vocabulary: belonging and possessing (449 candidates)
55. Subject-verb inversions (4074 candidates)
56. Word order: no subject - verb inversion (644 candidates)
57. To be to? or To have to? (902 candidates)
58. Infinitive (without 'to') (243 candidates)
59. Infinitive form (4944 candidates)
60. Gerund (5345 candidates)