CÁCH LÀM: Sử dụng công thức chuyển đổi câu chủ - bị động:
- Chủ động: S + V + O
`<=>` Bị động: S + be + V_pII + O.
LỜI GIẢI CHI TIẾT:
21. We were given more information by her.
22. The victims have been provided with food and clothing by them.
23. English is spoken in almost every corner of the world by people.
24. This machine mustn't be used after 5:30 p.m.
25. After class, the chalkboard is always erased by one of the students.
26. I was paid a lot of money to do the job by them.
27. Each of us was given two exercise books by the teacher.
28. He will be told that news by someone.
29. Enough money has been sent to those poor boys by them
30. The women in most countries in the world have been given the right to vote by them.
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#Team: Extensive Knowledge