tests by here4u with the online test builder (689 tests)
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1. Vocabulary: greeting people (536590 candidates)
2. Vocabulary: asking and answering (280500 candidates)
3. Vocabulary: on the phone (258845 candidates)
4. Vocabulary: at the restaurant (245713 candidates)
5. Vocabulary: let's stay in a hotel (109786 candidates)
6. As... Like... As if/ as though... (65039 candidates)
7. How + adjectives .... (51086 candidates)
8. Choosing your past tense... (49433 candidates)
9. Though/ in spite of ...Concession (44318 candidates)
10. 'Make someone do'/'Have something done': (a little further) (43106 candidates)
11. Do/does/did: affirmative, interrogative and negative forms (42050 candidates)
12. Irregular plurals (40836 candidates)
13. TO + verb base or TO + V + ing (36010 candidates)
14. Across or Through (35640 candidates)
15. Used to / to be used to (34531 candidates)
16. Vocabulary: I'm hungry (33622 candidates)
17. As/ like/ How: Which one to use (33581 candidates)
18. Vocabulary: fly away... (33561 candidates)
19. Imperative mood and its tags. (32490 candidates)
20. Whereas, Unless, Contrary to : contrasts (32486 candidates)