tests by here4u with the online test builder (667 tests)

41. Vocabulary: going to the doctor's (2) (5197 candidates)
42. Vocabulary: prevention (4305 candidates)
43. Vocabulary: character and personality (7567 candidates)
44. Vocabulary: using suffixes (1325 candidates)
45. Vocabulary: Saying good-bye (11750 candidates)
46. Interrogative clauses (29299 candidates)
47. Can/ could/ can't and equivalents (1027 candidates)
48. Relative pronouns (1623 candidates)
49. To say / to tell ... (3328 candidates)
50. Some forms of verbs (1817 candidates)
51. Question tags (1342 candidates)
52. To do or To make (2404 candidates)
53. Countable or uncountable (2592 candidates)
54. Verbs followed by Infinitive or gerund (5027 candidates)
55. Civilisation of the USA (5368 candidates)
56. Verbs in several tenses (3460 candidates)
57. Particles (2018 candidates)
58. From plural to singular (5235 candidates)
59. Particles (1468 candidates)
60. Need of articles (2079 candidates)