Chuển câu chủ động sang câu bị động ----- Nội dung dịch tự động từ ảnh ----- 6. Mary sent me this letter two days ago.->1. 7. People make compost from vegetables.-> Compost 8. You must finish this work before Sunday.-> This work 9. She hasn't used this bicycle for a long time.-> This bicycle 10. I saw a strange man in my garden yesterday.-> A strange man 11. They clean the floor every morning.-> The floor 12. They will solve the problem soon.-> The problem 13. They break the glass into small pieces. -> The glass 15. They made these cars in the USA. > These cars 16. People have used the internet all over the world. > The Internet 17. We planted many trees in the school garden. > Many trees 18. Someone has taken my book away. -> My book 19. He didn't help me with my homework. ->1 20. We have learnt English for three years. -> English 21. My father often reads books before bedtime. -> Books. 22. Lan bought some comic books for her brother. -> Some comic books.