Chuyển sang bị động ----- Nội dung dịch tự động từ ảnh ----- Change into passive: 1. People speak English and french in Canada. 2. They will visit Lan tomorrow. 3. We are studying Maths now. 4. My grandpa planted these trees ten years ago. 5. You should write the letter in English. 6. They have just opened a new restaurant on Le Hoan street. 7. I don't clean my room on weekdays. 8. Lan didn't give me that book yesterday. 9. Nam's father used to take him to the park on Sunday. 10.Do you bring your grandpa good books at weekends?