Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
Past simple => Present perfect
1/ The students began doing this test an hour
=>The students have done this test for an hour
2/Lan started working in that factory two years ago
=>Lan has workedin that factory for two years
3/She began studying english 3 yaers ago
=>She has studied english for 3 yaers
4/Tom began to collect stamps in 2004
=>Tom has collected stamps since 2004
5/She began to study english 3 years ago
=>She has studied english for 3 years
6/Nam started working for that company four years ago
=>Nam has worked for that company for four years
7/ It started raining an hour ago
=>It has rained for an hour
8/Lan began learning chinese in 2006
=>Lan has learnt chinese since 2006
9/Minh started to swim fuve years ago
=>Minh has swum for fuve years
10/He began writing the report at 4 o'clock
=>He has written the report since 4 o'clock
![](https://rs.olm.vn/images/avt/0.png?1311)
1 I started doing homework two hours ago. -> I have been doing my homework for two hours.
2 I started working in this company five years ago. -> I have worked in this company for five years.
3 She started writing this novel 3 months ago. -> She has written this norvel for 3 months.
4 Lan began playing the piano ten years ago. -> Lan has played the piano for ten years.
5 They started learning English 2 weeks ago. -> They have learnt English for 2 weeks.
6 My sister began teaching English 20 years ago. -> My sister has taught English for 20 years.
7 .It began raining half an hour ago. -> It has rained for half an hour.
8 They began building this house one month ago. -> They have built this house for one month.
9 He started having his breakfast 1 hour ago. -> He has had his break fast for 1 hour.
10 Mr. Ba began talking to our teacher an hour ago. -> Mr. Ba has talked to ourr teacher for 2 hours.
1. I have been doing HW for 2 hours.
2. I have worked in this company for 5 years.
3. She has been writing this novel for 3 months.
4. Lan has been playing the piano 10 years ago.
5. They have been learning English for 2 weeks.
6. My sister has been teaching English fo 20 years.
7. It has been raining for half an hour.
8. They have been building this house for 1 month.
9. He has been having breakfast for 1 hour.
10. Mr Ba has been talking to our teacher for an hour.
![](https://rs.olm.vn/images/avt/0.png?1311)
1. They started checking the machines two hours ago.
They have…checked the machines for two hours.…………………………………….
2. She commenced cooking the soup half an hour ago.
She has… cooked the suop for half an hour…………………………………………
3. Jack began planting flowers three hours ago.
Jack has planted flowers for three hours…………………………………………………
4. They started building the bridge two years ago.
They have …built the bridge for two years…………………………………………
5. Mai commenced writing the lesson twenty minutes ago.
Mai has …written the lesson for twenty minutes……………………………………
6. My Vi began counting her lucky money five minutes ago.
My Vi has …counted her lucky money for five minutes………………………………
7. You started flirting with me forty minutes ago.
You have …flirted with me for forty minutes…………………………………………….
8. Tu Linh and My Vi commenced doing the test at one o'clock.
Tu Linh and My Vi have …done the test since one o'clock …………
9. Thien Son began watering the vegetables at nine o'clock.
Thien. Son has …watered the vegetables since nine o'clock……………
10. Khanh started playing coputer games in 2002.
Khanh has …played computer games since 2002…………………………
11. Bich Tran commenced raising pets in 2000.
Bich Tran has …raised pets since 2000………………..……………
12. Binh began selling lottey kets in June.
Binh has …sold lottey kets since June……………………...……….……………………………….
13. I have never drunk whisky before.
It is the first time i have drunk whisky………………………………………………………………….…
14. She has not eaten curry before.
It is the first time …she has eaten curry……………………………………………………………………
15. Danh has never visited Vung Tau before.
It is the first time …Danh has visited Vung Tau………………………………………………….
Học Tốt ! >.<
![](https://rs.olm.vn/images/avt/0.png?1311)
I.
1. It isn't necessary for her to shout.
-> She doesn't need to shout
2. It is necessary for you to repair that old typewrite.
-> You don't nees to reapair that old typewrite
3. It isn't necessary to make an appointment to see the bank manager .
-> You don't need to make an appointment to see the bank manager
II.
1. We spent 2 hours watering the flowers.
-> It took us 2 hours to water the flowers
2. It takes me 15 minutes to go to school by bike
-> I spend 15 minutes going to school by bike
3. It took him a year to study English
-> Ha spent a year studying English
4. It took her 2 hours to type this document
-> She spent 2 hours typing this document
5. We spent 5 hours getting to London
-> It took us 5 hours to get to London
III.
1. He has been working in this factory for 15 years.
-> He started working in this factory 15 years ago
2. He stanted to learn English eight years ago.
-> He has been learning English for eight years
3. We have been learning English for one years.
-> We began to learn English one year ago
4. I have been studying business administration in London for 2 years
-> I began to study business administration in London 2 years ago
5. We started working on this project a year ago
-> We have been working on this project for a year
![](https://rs.olm.vn/images/avt/0.png?1311)
1. The last time we saw her was on Christmas Day
=> We have not seen her since Christmas Day.
2. I haven't eaten this kind of food before
=> This is the first time I have eaten this kind of food.
3. It started raining an hour ago
=> It has rained for an hour.
4. We haven't visited my grandparents for two months
=> The last time we visited my grandparents was two months ago.
5. I have studied English for three years
=> I began studying English three years ago.
6. My brother hasn't seen his best friend for nearly five years
=> It's nearly five years since my brother last saw his best friend.
7. When did you start learning English ?
=> How long have you learnt English?
8. Jane is as tall as her older sister
=> Jane is the same height as her older sister.
9. These houses are not as large as those houses
=> Those houses are larger than these houses.
10. Your backpack is not the same as mine
=> My backpack different from yours.
11. Ba began collecting stamps three years ago
=> Ba has collected stamps for three years.
12. We started living here twenty years ago
=> We have lived here for twenty years.
13. It's five years since I last saw Nam
=> I haven't seen Nam for five years.
14. The last time she visited us was four months ago
=> She hasn't visited us for four months.
15. I know Susan, I first met her in 2006
=> I have known Susan since 2006.
16. Minh has a digital camera. He bough it in 2001
=> Minh has had a digital camera since 2001.
17. Mai plays the piano. She started when she was ten years old
=> Mai has played the piano since she was ten years old.
18. Barbara is in Ha Noi now. She arrived there five months ago
=> Barbara has arrived Ha Noi for five months.
19. They started living here last month
=> They have lived here since last month.
20. My shoes are different from yours
=> My shoes are not the same as yours.
2. This is the first time I ate this kind of food.
3. it has started raining for an hour
4. The last time we have visited my grandparents was two months ago.
5. I began studying English three years ago.
6. It's nearly five years since my brother last saw his best friend.
7. How long have you learned English?
9. Those houses are more larger than there houses.
10. My packback is different from your packback
11. Ba has collected stamps for three years.
12. We have lived here for twenty years.
13. I haven't seen Nam for five years.
14. She hasn't visited us for four months.
15. I have met Susan since 2006.
16. Minh has had a digital camera since 2001.
17. Mai has played the piano since she was ten years old.
18. Babara has arrived to Hanoi for five months.
19. They have lived here for a month.
20. My shoes are not the same as yours.
1. Tom has been playing the piano for 4 years.
2. I have been cooking for the party for 4 hours.
3. She has been working as a secretary for 2 years.
4. My father has been reading a newspaper for 2 hours.
5. My sister started studying English a year ago.
6. Scientists have been fighting against AIDS since 1980.
7. The Browns began living in London 20 years ago.
8. John started working for this electronics firm in 1999.
9. Women began fighting for their rights since the middle of the 20th century.
10. Jack and Jill started learning to drive 2 weeks ago.
11. When did you start studying English?
12. How long have you been doing research on lung cancer?
13. My grandfather has never been to the hospital before.
14. I have never seen this film before.
15. This is the first time my father has driven a car.
16. It's the first time I've met such a famous singer.
17. It's the first time she has been to the ballet.
18. This is the first time she has drunk Coca Cola.
19. It's the first time I have read this book.
20. It's the first time I have met such an intelligent student.
21. We haven't seen Tom since I moved to Bristol.
22. She hasn't written to me for nearly 2 years.
23. This film was last shown on TV nearly 10 years ago.
24. She last swam in the river 3 years ago.
25. I visited the city museum 5 years ago.
26. I last attended the club in 1988.
27. I last saw him 2 months ago.
28. I last went swimming 2 years ago.
29. I have not played football since 1970.
30. It has not rained for a fortnight.
31. Lucy has not worn that dress since Barbara’s wedding.
32. My father last went to Vung Tau 2 years ago.
33. Betty has not ridden to work for a fortnight.
34. The last time he played tennis was in 1990.
35. The last time I met her was 2 months ago.
36. It’s been over 3 months since Tom had his hair cut.
37. It’s been 2 years since my father went to Hanoi.
38. It’s been years since I enjoyed myself so much.
39. It’s been 2 years since I ate this kind of food.
40. It’s been hours since Mary rang.
41. It’s been 4 years since we saw him.
42. I haven’t gone to see them for over a year.
43. It’s been over ten years since I last played football.
44. She started teaching the children in this remote village five months ago.
45. When was the last time he wrote to you?
46. How long has it been since he last talked to you?
47. I haven’t enjoyed myself since your birthday party.
48. My father hasn’t seen his brother in nearly 20 years.
49. How long is it since you learned to drive?
50. It’s been over six months since John had his hair cut.
1.Tom began playing the piano 4 years ago.
àTom has played the piano for 4 years .
2. I started cooking for the party 4 hours ago.
àI have cooked for the party for 4 hours .
3. She started working as a secretary 2 years ago.
àShe has worked as a secretary for 2 years .
4. My father is reading a newspaper. He started 2 hours ago.
àMy father has read a newspaper for 2 years .
5.My sister began to study English a year ago.
àMy sister has studied English for a year .