tests by here4u with the online test builder (650 tests)

41. Word Stress (1) (2915 candidates)
42. Pronunciation of the final sound -ED (4084 candidates)
43. A few difficulties with pronunciation (3379 candidates)
44. Vocabulary: doing things... (4178 candidates)
45. Vocabulary: Taking a holiday (4334 candidates)
46. Can/ could/ can't and equivalents (1104 candidates)
47. By? By the time? Until? (6110 candidates)
48. Made of? from? with? or out of? (6155 candidates)
49. Standard or casual registers? (38 candidates) [Being reviewed]
50. Conditions (2398 candidates)
51. Vocabulary: belonging and possessing (446 candidates)
52. Subject-verb inversions (4042 candidates)
53. Word order: no subject - verb inversion (639 candidates)
54. To be to? or To have to? (871 candidates)
55. Infinitive (without 'to') (236 candidates)
56. Infinitive form (4925 candidates)
57. Gerund (5311 candidates)
58. So or such (5381 candidates)
59. Else and compounds (550 candidates)
60. Prepositions and adverbs of LOCATION (2) (4804 candidates)