Ex3:Use the correct passive form of these 6. If I didn't do my job properly , I ( sack )
7. The electric light bulb by Thomas Edison ( invent )
9. If it is foggy , that sport event ( cancel )
11. This machine for quite a long time ( not use )
13. I am looking forward to ... fairly ( treat )
15. How old is this tower ? It to be over 600 years ago . ( believe )
16. Teacher's day largely since 1982 ( celebrate )
17. We are having our house at the moment ( paint )
18. Some trees on the sidewalk at the moment ( plant )
19. My car has disappeared . It by my brother ( take )