cách biến đổi câu từ thì quá khứ đơn sang thì hiện tại hoàn thành và ngược lại A-I.công thức: S + (last) + V QKĐ-KĐ+.....................+ when.........../ago ↓ ↓ <=>S+V HTHT-PĐ + .........................+ since............/for............ Rewrite the following sentences,using the words given(Viết lại các câu sau, sử dụng các từ đã cho) Ex:-I last saw her when I was a student/2 years ago. →I haven't seen her since I was a student / for 2 years. 1.We last saw Tom when I moved to Bristol. →We haven't_________________________________________ 2.She (last) wrote to me nearly 2 years ago. →She hasn't__________________________________________ 3.This film was (last) shown on TV nearly 10 years ago. →Ths film____________________________________________ 4.She last swam in the river 3 years ago. →She ________________________________________________ 5.I last visited the city museum 5 years ago. →I____________________________________________ 6.I haven't attended the club since 1988. →I last_________________________________________ 7.I haven't seen him for 2 months. →I last___________________________________________ 8.I haven't gone swimming for 2 years. →I last_____________________________________________ II. The last time + S +V QKĐ-kĐ+....+was in (at...)/was .......ago ↓ ↓ ↔ S +V HTHT-PĐ.....+ since / for Rewrite the following sentences,using the words given(Viết lại các câu sau, sử dụng các từ đã cho) Ex: The last time I heard him was in August. ↔I haven't heard him since August. 1.The last time I played football was in 1970. →I have______________________________________ 2.The last time it rained was a fortnight ago. →It has_______________________________________ 3.The last time Lucy wore that dress was at Barbara's wedding. →Lucy has____________________________________ 4.The last time my father was to Vung Tau was 2 years ago. →My father___________________________________ 5.The last time Betty rode to work was a fortnight ago. →Betty has___________________________________ 6.He hasn't played tennis since 1990. →The last time________________________________ 7.I haven't met her for 2 months. →The last time________________________________