Chuyển sang câu bị động : 1. I can speak English well. 2. My brother can play the guitar. 3. We should eat a lot of fruit every day 4. My father can crave wood 5. They will build a new house in this city next year. 6. I have just done my homework. 7. My mother has bought this shirt since last week. 8. We have already written the essay. 9. We have finished all homework since 8 p.m 10. My mother has just made this cake. 11. My father has washed his car.