----- Nội dung dịch tự động từ ảnh ----- 10. My mum was a chief in Cham restaurant, but now she is retired. A. My mum has been a chief in Cham restaurant. B. My mum is used to working as a chief. C. My mum is not getting used to working as a chief because she is old. D. My mum used to be a chief.
