----- Nội dung dịch tự động từ ảnh ----- 6. I have known this singer since she has been 16 year old 7. people enjoyed Beethovan's music for nearly 200 years 8. The boy played soccer since 2 o'clock 9. All my classmates knew each other quite well since they were in grade 6 10. These dancers performed that ballet qutie well many times
