Exercise 3:Chuyển các câu sau thành bị động và chủ động 1. Boys are playing football in the soccer field at 9 am 2. This room has been painted blue by her father. 3. Cricket is played in Australia. 4. I am given a book by my her. 5. We have lost our keys. 6. You might see dolphins here. 7. The report must be completed by next Friday. 8. They were singing a song in the lesson yesterday.
