It's 3 months since since the windows were cleaned.
ð The windows haven’t ________________________________________________________
7. It's years since I took photographs.
ð I haven’t __________________________________________________________________
8. I last watched TV on new years's day.
ð I haven’t __________________________________________________________________
9. It's 3 months since he wrote to me.
ð He hasn’t _________________________________________________________
10. The last time I was aboard was in the summer of 1978.
ð I haven’t __________________________________________________________
11. It's ten years since that house was lived in.
ð That house ________________________________________________________
12. I haven't seen him for 2 months.
ð I last _____________________________________________________________
13. I haven't been to a concert for over a year.
ð The last time ____________________________________________________
14. The last time I really enjoyed myself was your birthday party.
ð I haven’t ________________________________________________________
15. It's nearly 20 years since my father saw his brother.
ð My father hasn’t __________________________________________________
16. It is impossible for me to call hin at the time
ð I ______________________________________
17. I advise you to take timely action to protect yourself from harm
ð You ____________________________________________
18. It is unnecessary for us to wear uniform to the party.
ð We_______________________________________________
19. It is required that everyone join hands to do schoolwork.
ð Everyone ____________________________________________
20. I am not sure whether he will come or not .
ð He ……………………………………………………