Rewrite the following sentences beginning with the given words so that the meaning is unchanged: 1. Ms Quyen began teaching Chinese ten years ago. Ms Quyen has . 2. We havent visited the museum before. This ... 3. The police started investigating the case a week ago. The police have 4. I have never heard such an exciting story like this before. This is 5. It is three years since I last wrote to her. I . 6. The last time I saw David was in 1989. I.. 7. It is nearly twenty years since my father saw his brother. My father.. 8. We havent seen to a concert for over a year. We last.................................................................................... 9. Ive never read a more romatic story. Its the .. 10. Ive not eaten this kind of food before. This is ... 11. I have been to Britol for three years. The last time .... 12. I have never met such a famous person before. It is .. 13. Its a week since he last smoked a cigarette. He. The last time Các vị cứu tinh hãy giúp em với ạ! Cảm ơn mọi người rất nhìu! Yêu <3