• 9.1 Warm-up Exercises 
• 9.2 Level-up Exercises 

10. Future Perfect

• 10.1 Warm-up Exercises 
• 10.2 Level-up Exercises 

11. Future Continuous

• 11.1 Warm-up Exercises 
• 11.2 Level-up Exercises 

12. Have to

• 12.1 Warm-up Exercises 
• 12.2 Level-up Exercises 

13. Used to

• 13.1 Warm-up Exercises 
• 13.2 Level-up Exercises 

14. Modal Verbs

• 14.1 Warm-up Exercises 
• 14.2 Level-up Exercises 
• 14.3 Modals in the Past 

15. Mixed Tense Exercises

• 15.1 Warm-up Exercises 1 
• 15.2 Warm-up Exercises 2 
• 15.3 Warm-up Exercises 3 
• 15.4 Level-up Exercises 1 
• 15.5 Level-up Exercises 2 
• 15.6 Level-up Exercises 3 

🔹 B. SUBJECT AND VERB AGREEMENT

• B.1 Warm-up Exercises 1 
• B.2 Warm-up Exercises 2 
• B.3 Level-up Exercises 1 
• B.4 Level-up Exercises 2 

🔹 C. PASSIVE VOICE

• C.1 Warm-up Exercises 1 
• C.2 Warm-up Exercises 2 
• C.3 Level-up Exercises 1 
• C.4 Level-up Exercises 2 

🔹 D. ARTICLES & DETERMINERS

• D.1 A / An / The / No Article 
• D.2 Much / Many / A Lot Of / A Few / A Little 
• D.3 Demonstratives (this, that, these, those) 
• D.4 Level-up Exercises