Rewrite the sentences in the passive.
1. The pop star sang the song.
2. The chief hasn't made dinner.
3. An explorer has found a dinosaur egg.
4. Mrs. Gates will look after the baby.
5. They won't take him home after the party.
6. Someone left the door open.
7. Jenny didn't break the window.
8. Someone is using computer.
9. His brother taught him to drive.
10. Many people speak English
11. The doctor had already told him to go on the diet.
12. The author is writing a new book.
Надо срочно превратить в страдательный залог