1. Active vs. Passive        11. Order of adjectives 2. Adverbs        12. Prepositions 3. Articles         13. Quantifiers 4. Comprehension        14. Relative pronouns 5. Conditionals        15. Reported speech 6. Determiners        16. Sentence structure 7. Idioms        17. Tenses 8. Indefinite pronouns        18. (to) + Infinitive 9. Infinitive or -ing form        19. Vocabulary 10. Modal verbs        20. Wishes and hypotheses

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