Chuyển đổi từ Hiện Tại Hoàn Thành sang Quá Khứ Đơn ( và ngược lại) 1. She last wrote that two months ago. => She hasn't........... 2. When did you start working in that factory? => How long........ 3. Minh last wrote to his pen pal five months ago. => Minh hasn't....... 4. The last time we visited Kuala Lumpur was two years ago. => It's ..... 5. We last saw our grandfather ten months ago. => We haven't..... 6. I last listened to this song tên years ago. => It is...... 7. I last saw Minh six days ago. I haven't....... 8. The last time Tom visited his uncle was two years ago. =>It's....,... 9. Hoa hasn't written to her parents for three months. => The last.,........ 10. The last time we ate this kind of food was in January. => We haven't..... => We last.... 11. We started/ began living here in 1995. => We have..... 12. Huong last wrote to her parents two months ago. => Huong hasn't.... => It is two monther since.... 13. How long is it since he bought the computer? => When.... 14. I've never talked to the headmaster before. => It's .... 15. The last time we went to London was two years ago. => We haven't.... 16. It is my first time to Vung Tau. => I have .....