tests by flori10 with the online test builder (50 tests)
Ranked by: number of candidates
1. Adjectives and adverbs (1994 candidates)
2. Instead of, unlike or whereas (1390 candidates)
3. Stop to do sth or stop doing sth (1243 candidates)
4. Past modals with deduction (1085 candidates)
5. Above or over (1041 candidates)
6. Word order: Verbs and objects go together (993 candidates)
7. Infinitive or ing-form after verbs of perception (906 candidates)
8. Make sb do sth or have something done (879 candidates)
9. Forget, remember, stop, be sorry + gerund or infinitive (764 candidates)
10. Word order: Place before time (715 candidates)
11. Find the opposite adjective! (712 candidates)
12. Had better or should (686 candidates)
13. Let alone (683 candidates)
14. All of which, whom, none of which, etc. (651 candidates)
15. Definitive, indefinite or no article (642 candidates)
16. Inverted conditionals (639 candidates)
17. Go on - regret to do sth - doing sth (629 candidates)
18. Phrasal verbs... back and away (606 candidates)
19. Dismissive, defiant, brazen (599 candidates)
20. Emphasis with It is/It was .... + relative clause (591 candidates)