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EXERCISES FOR PRACTICE - GRADE 12

2. B. mustn't

3. C. must have been damaged 

4. D. needn't

5. B. should have tried

6. A. May / can

7. B. needn't

8. C. must have been

9. B. might not

10. A. musn't

11. A. needn't

12. D. musn't

13. A. might

14. C. May

15. B. needs

16. B. Must / needn't

17. C. would be floating

18. A. musn't

19. B. couldn't

20. C. might

21. A. must have gone

22. C. Will

23. B. musn't

24. D. will

25. C. Could

26. B. cannot

27. C. can't