tests by laure95 with the online test builder (42 tests)

21. Their / they are / there are (10868 candidates)
22. Can and can't (275657 candidates)
23. Be allowed to (94660 candidates)
24. So and neither (8001 candidates)
25. In town (2365 candidates)
26. Present perfect or past perfect (65172 candidates)
27. Exclamation with What or So (7374 candidates)
28. During, for or since (75059 candidates)
29. Did, was or were (118762 candidates)
30. Questions with How many (11662 candidates)
31. Look and particles (7546 candidates)
32. Pronouns (7623 candidates)
33. Short answers (21679 candidates)
34. Must or mustn't (221088 candidates)
35. Can/Must/Should (286051 candidates)
36. Could/Couldn't (303458 candidates)
37. All, Many, A few (4118 candidates)
38. Relative pronouns (29681 candidates)
39. Active or passive form (5577 candidates)
40. Subject pronouns (16773 candidates)