tests by here4u with the online test builder (694 tests)
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1. Vocabulary: greeting people (536898 candidates)
2. Vocabulary: asking and answering (280664 candidates)
3. Vocabulary: on the phone (259061 candidates)
4. Vocabulary: at the restaurant (245831 candidates)
5. Vocabulary: let's stay in a hotel (109891 candidates)
6. As... Like... As if/ as though... (69554 candidates)
7. How + adjectives .... (51640 candidates)
8. Choosing your past tense... (50071 candidates)
9. Though/ in spite of ...Concession (44734 candidates)
10. 'Make someone do'/'Have something done': (a little further) (43251 candidates)
11. Do/does/did: affirmative, interrogative and negative forms (42578 candidates)
12. Irregular plurals (41029 candidates)
13. TO + verb base or TO + V + ing (36797 candidates)
14. Across or Through (35890 candidates)
15. Used to / to be used to (34709 candidates)
16. As/ like/ How: Which one to use (33778 candidates)
17. Vocabulary: I'm hungry (33644 candidates)
18. Vocabulary: fly away... (33609 candidates)
19. Whereas, Unless, Contrary to : contrasts (32910 candidates)
20. Imperative mood and its tags. (32647 candidates)