.We haven’t been to the concert for over a year . =>The last time ………………………… The last time I went to the concert was over a year ago 2. We last saw our grandfather two years ago . =>We haven’t ………………………………… =>> We haven't seen our grandparents for 2 years 3. I have never read such a romantic story . =>This is ………………………………………… =>> This is the first time I have read such a romantic story before 4. It’s nearly twenty years since my father saw my uncle. =>My father ……………………… =>> My father has seen my uncle for nearly twenty years. 5. He hasn’t been back to his village for over 20 years . =>It’s ………………………………… => It’s over 20 years since he last went back to his village 6. The journey to the village was very interesting to the boys . =>The boys haven’t ………………… => The boys haven’t been interested in the journey to the village before. 7. The last time we went to a cinema was two years ago . =>We haven’t ……………………… => We haven’t gone to a cinema for two years. 8. The last time we saw him was on Monday . =>We………………………………………… =>> We haven't seen him since monday 9. The last time I saw David was in 1989. =>I…………………………………………………… =>I haven’t seen David since 1989. 10. They began building this house 2 months ago. =>They have ………………………..……… =>They have built this house for 2 months . 11. My father started to work in this factory last week. =>My father has……………………… => My father has started to work in his factory since last week. 12. He started living in Ho Chi Minh city when he was 8. =>He has…………………………… =>He has started lived in Ho Chi Minh City since he was 8. 13. He learnt English when he was 18. => He has ……………………………………………… => He has learned English scince he was 18. 14. They have worked in that factory for five years. =>They began ……………………….. =>> They have begun to work in that factory five years. 15. We have learnt English for four years. =>We started................................................................. => we started learnt English four years. 16..My father started to give up smoking last year. =>My father has.............................................. =>> My father has given up smoking since last year 17.They have worked in that factory since 2001. =>They started..................................................... =>> Thay started to work in that factory in 2001 18. Lan hasn't written to Maryam for a month. =>Lan didn't......................................................... => Lan didn’t wrote to Maryam was a month. 19. How long have you learnt French ? =>How long ago.........................................? => How long did you learnt French? 20. How long have you bought this car ? =>When did................................? => When did you buy this car ? Kt lại giúp mình nhé