Chuyển các câu sau thành câu bị động 1. You should turn off all the lights before you leave the house. 2. We should reduce the amount of garbage to protect the environment. 3. We must finish all the work before it gets dark 4. That young artisan can make nice conical hats. 5. They will build a new school in this area. 6. People ought to obey traffic rules. 7. We might visit the Art museum next week. 8. All the students could finish the test in time. 9. Nobody could answer the last question in the math test. 10. Not many students in our class can speak English fluently1.