(Công thức chung ở trong ảnh nha)
Lưu ý: khi chủ ngữ trong câu chủ động là "I, we, they, he, she, đại từ bất định" thì khi chuyển sang câu bị động có thể bỏ "by O"
8. Two department stores have been built this year
9. A new style of jeans has just been introduced in the USA
10. Has the car been rerpaired by your father?
11. Two department stores have been built this year
12. The problem can be solved
13. A new bridge is going to be built in the area
14. He couldn't be helped
15. Five million bottles of champagne will be produced in France next year
