giúp e với ạ e cần gấp !!!!

1. The problem is going to be explained to the president by the staff.
2. You will be helped with your homework tonight by them.
3. An important announcement was made on TV last night by the director.
4. Thousands of people have been provided with food by them.
5. His old car was sold and a new one was bought by him.
6. Another book about science is being written by him.
7. Exercise 5 on page 40 is being done by my students right now.
8. She is visited by me twice a week.
9. An interesting story was told to us by her.
10. I was often taken to the place by my father when I was young.
11. What will be done by you if the book is finished?
12. A car was being driven by us when the accident was seen.
13. A decision must be made by you as soon as possible.
14. TV is not watched by her at night.
15. Was their work finished yesterday by them?
16. The accident must be reported to the policeman by you.
17. The final examination was taken by all students.
18. He ought to be shown how to use this computer by you.
19. English is naturally spoken very well by them.
20. The house will be rebuilt next year by them.