----- Nội dung ảnh ----- 1. The boys broke the windows yesterday. 2. The boys didn’t break the windows yesterday. 3. The boys break the windows. 4. The boys don’t break the windows. 5. The boys have broken the windows. 6. The boy has broken the windows. 7. The boys have broken the window. 8. My father waters the flower every morning. 9. My father is watering the flower. 10. My father is watering the flowers. 11. My father was watering the flowers. 12. My father was watering the flowers. 13. Someone had stolen Lan’s wallet. 14. John will repair this fence. 15. A tiger kills a deer. 16. He learns English at school. 17. She has bought a new hat.