PASSIVE 5 cét sừn tiếp ạ
16. They have repaired the engine of the car.
17. The boys broke the window and took away some pictures.
18. People spend a lot of money on advertising every day.
19. Teacher has told a story.
20. Mary cuts a cake with a sharp knife.
– Thì HTĐ: S + am/is/are + Ved/V3 + (BY O)
– Thì HTHT: S + have/has + been + Ved/V3 + (BY O)