1. Chuyển đổi từ hiện tại hoàn thành sang hiện tại hoàn thành/ quá khứ đơn và ngược lại. 2. This is the first time he has gone abroad.=>He hasn't................................... 3. This is the first time she has visited London.=> He has never ……………………… 4. We haven't spoken English before. => It's the first time ........ 5. Nam has never driven a car before. => This is ................................................ 6. This is the first time Hung has done this work.=> Hung has ............................. 7. I have never seen such a good film before. => This is ..................................... 8. We haven't had a difficult exercise before. => This is the most ..................................... 9. It's the longest river I have ever crossed. => I have ........................................................... 10. I have never eaten such a delicious meal .=> This is …………………………….. 11. Thang hasn't seen such an awful actor like Mr. Bean. => Mr. Bean is ........................... 12. It is a long time since we last met.-> We 13. They have never come back to Vietnam for 2 years. => It is 14. It's many years since they last stayed here. => They haven't 15. Minh hasn't written books for a week. => It's 16. This man hasn't taken a bath for a long time.=> It is 17. He hasn't booked that hotel for many weeks.=> It is 18. Lan has never talked to me for a week. => It is 19. Hung hasn't walked with me for 2 days. => It is 20. Minh has written books for 5 years. => Minh began ............................... 21. She started driving 1 month ago. -> She has.................................................. 22. We began eating when it started to rain.->We have....................................... 23. She started driving 1 month ago.=> She has…………………………………… 24. We began eating when it started to rain.=> We have…………………………………. 25. I last had my hair cut when I left her.-> I haven't........................................... 26. The last time she kissed me was 5 months ago.-> She hasn't................................ 27. I haven't seen him for 8 days.=> The last ...................................................................... 28. The last time she talked to me was 5 months ago.=> She hasn’t………………………. 29. We last saw our grandfather two years ago .-> We haven’t ……………………………… 30. We haven’t been to the concert for over a year . -> The last time ……………………… 31. When did you have it ?=> How long...................................................? 32. The last time we went to a cinema was two years ago .-> We haven’t …………………… 33. The last time we saw him was on Monday -> We………………………………………… 34. The last time I saw David was in 1989. -> I……………………………………………… 35. When did they stay here? => How long ..................................? 36. How long have they lived in Hanoi? => When ............................? 37. When did Nam start swimming? => How long ............................................? 38. When did you begin watching T.V? => How long .......................................? 39. How long have Nam and Hoa been friends? => When ..................................? 40. 6. Minh has learnt English for 5 years. => Minh began 41. 7. Lan started to speak at 7a.m=> Lan has 42. 8. It started to rain 5 hours ago => It has rained for 5 hours. 43. 9. They have talked to each other since 8 a.m. => They began 44. 10. My sister started listening to music in 2009. => My sister has 45. 11. Thanh has worked in Hai Dương since 2001.=> Thanh began 46. 12. Nam started to join in this club 2 years ago. => Nam has 47. 13. They have collected eggs for 3 hours. => They began 48. 14. Hung has made this toy since 2p.m.=> Hung began 49. 15. Hanh began to use a computer in 2012.=> Hanh has 50. 16. Minh started walking 30 minutes ago. => Minh has 51. 1. Minh has written books for 5 years. => Minh began 52. 2. She started driving 1 month ago. -> She has 53. 3. We began eating when it started to rain.->We have 54. 4. She started living here 3 months ago.=> She has 55. 5. We began leaving when it started to rain.=> We have 56. 6. Minh has learnt English for 5 years. => Minh began ...... 57. 7. Lan started to speak at 7a.m=> Lan has... 1. Lan enjoys watching TV after dinner, ............? 2. Tam didn't go to school yesterday, ........? 3. They'll buy a new computer, .........? 4. She can drink lots of tomato juice everyday, .............? 5. She may not come to class today, .............? 6. We should follow the traffic rules strictly, .............? 7. Your mother has read these fairy tales for you many times, . .............? 8. He seldom visits you, .............? 9. You've never been in Italy, . .............? 10. That's Bob, .............? 11. No-one died in the accident, .............? 12. I'm supposed to be here, .............? 13. Nothing is wrong.............? 14. Nobody called the phone, .............? 15. Everything is okay, .............? 16. Everyone took a rest, .............? 17. Going swimming in the summer is never boring, .............? 18. Let's dance together, .............? 19. Don't talk in class, .............? 20. Sit down, .............? 21. This picture is yours, .............? 22. Hoa never comes to school late, .............? 23. You took some photos on the beach, . .............? 24. He hardly ever makes a mistake, .............? 1. They want to come,......................? 2. Elizabeth is a dentist, .................... ? 3. They won't be here, .....................? 4. That is your umbrella, ......................? 58. 5. There aren't many people here yet, ................. ? 5. He has a bicycle,........................? 6. Peter would like to come with us to the party, ..........................? 7. Those aren't Fred's books, .........? 8. You have never been to Paris,............? 9. Something is wrong with Jane today, ............ ? 10. Everyone can learn how to swim, .................. ? 11. Nobody cheated in the exam, ....................... ? 12. Nothing went wrong while I was gone, ............ ? 13. I am invited, ......................? 14. This bridge is not very safe,.................? 15. These sausages are delicious, ................? 16. You haven't lived here long, ............? 17. The weather forecast wasn't very good, ................ ? 18. He'd better come to see me, .............. ? 19. You need to stay longer, ..............................? 1. You don't know where Ann is, ..............? 2. They haven't seen this film, .................? 3. You wouldn't tell anyone about it, ...............? 4. He'd never seen you before,...................? 5. Let's go out for a walk, .......................? 6. This is your book,..................? 7. I am supposed to be here, .............? 8. There is a meeting tonight, ........................? 9. Tom won't be here late, ....................................? 10. You 're tired,............................? 11. You haven't lived here long, ..................? 12. You came in a sports car, ...........................? 13. These cakes look good, ...........................? 14. You can speak German, .......................? 59. 15. You couldn't do me a favor, ...................?