19. A story is going to be told by teacher.
20. A cake is being cut with a sharp knife by Mary.
21. The woman with the red hat was looked by the children.
22. The victims have been provided food and clothing.
23, English is spoken in almost every corner of the world.
24. This machine mustn't be used after 5:30 p.m.
25. After class, the chalk board is always erased by one of the students.
