----- Nội dung dịch tự động từ ảnh ----- d home Langes if →The Browns began 8. John has worked for this electronics firm since 1999. →→John started cook for 11. How long have you studied English? → When de begon Studios 12. When did you begin to do research on lung cancer? →How long TH2: Nhận biết: last→haven’t/ hasn’t birlish Anglish Stopped → haven't/hasn't Minh 1.She last swam in the river 3 years ago. →She hasn't writton to me for three 2.I last visited the city museum 5 years ago. >I 't attended the club since 1988. years