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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. Ba has been collecting stamps for three years.
Hoặc Ba has collected stamps for three years.
2. We have lived here for twenty years.
3. It is five years since I last saw Nam.
4. The last time she invited us was four months ago.
5. I have known Susan since 2006.
6. Minh has had a digital camera since 2007.
7. Mai has played the piano since she was ten years old.
8. Barbara has been Ha Noi for five months.
9. It is two years since they started living here.
10. Your shoes and mine are not the same.

1. Ba began collecting stamps three years ago. -> Ba has collected stamps for three years.
2. We started living here twenty years ago. -> We have lived here for twenty years.
3. I haven’t seen Nam for five years. -> It is five years since i haven't nam.
4. She hasn’t visited us for four months. -> The last time she visited us four months ago.
5. I know Susan. I met her in 2006. -> I have met susan since 2006.
6. Minh has a digital camera. He bought it in 2007. -> Minh has had a digital camera since 2007.
7. Mai plays the piano. She started playing the piano when she was ten years old.
-> Mai has played the piano since she was ten years old.
8. Barbara is in Ha Noi now. She arrived there five months ago. -> Barbara has arrived hanoi for five months.
9. They started living here two years ago. -> It is two years since they have started living here.
10. My shoes are different from yours. -> Your shoes and mine are not similar.
1. Ba began collecting stamps three years ago. -> Ba has collected stamps for three years.
2. We started living here twenty years ago. -> We have lived here for twenty years.
3. I haven’t seen Nam for five years. -> It is five years since i haven't nam.
4. She hasn’t visited us for four months. -> The last time she visited us four months ago.
5. I know Susan. I met her in 2006. -> I have met susan since 2006.
6. Minh has a digital camera. He bought it in 2007. -> Minh has had a digital camera since 2007.
7. Mai plays the piano. She started playing the piano when she was ten years old.
-> Mai has played the piano since she was ten years old.
8. Barbara is in Ha Noi now. She arrived there five months ago. -> Barbara has arrived hanoi for five months.
9. They started living here two years ago. -> It is two years since they have started living here.
10. My shoes are different from yours. -> Your shoes and mine are not similar.

1,It's 3 years since I last talked to her on the phone .
-> I haven't ..talked to her on the phone for 3 years............
2, Minh began to collect stamps in 2000 .
-> Minh has collected stamps for 20 years.........
3,The last time she visited me was five months ago.
-> She hasn't .visitted me for five months.......
4, It's a long time since we last went to Australia .
-> We have .not gone to Australia for a long time.........
5, Is this the most fashionable shirt she has got ?
-> Has she .gotten the shirt more fashionable than this ? .......
6, How long is it since you made friend with Mary ?
-> When did you make friend with Mary ?..
7, How long is it they built this house ?
-> When .did they built this house.?...
8, I last saw them five months ago .
-> I have .not seen them for five months.....
9, I haven't eaten a pizza for a year .
-> The last time .I ate a pizza was a year ago..
10, I started to learn English three years ago .
-> It is .3 year since the l started lean English............

III/ Rewrite the following sentences as directed.
6. He last came here two months ago.
@ He hasn’t come here for two months
7. The last time I played tennis was in 1990.
@ I haven’t played tennis since 1990
8. It’s three years since I saw Nam.
@ I haven’t seen Nam for three years
9. The last time I saw her was in 2006.
@ I haven’t seen her since 2006
10. He began to play tennis when he was 6.
@ He has played tennis shince he was 6
11. She bought that house in 1994.
@ She has owned that house since 1994
12. She began to play the piano 5 years ago
@ She has played the piano for 5 years
13. Nam bought this bike last year.
@This bike has been owned by Nam since last year
14. She was not seen three days ago.
@Nobody has seen her for three days
15. When did you last see Ann?
@How long have you not seen Ann ?

II. dùng từ gợi ý viết lại các câu sau sao cho có nghĩa không đổi :
1. we started living here fifteen years ago.
we have .........LIVED HERE FOR FIFTEEN YEARS............
2. the last time she visited me was five months ago.
she hasn't ......VISITED ME FOR FIVE MONTHS.......
3. i last wrote to my uncle in july.
i haven't .....WRITTEN TO MY UNCLE SINCE JULY.......
4. it's a long time since we became close friends.
we have ..........BECOME CLOSE FRIENDS FOR A LONG TIME.............
5. minh began to collect stamps in 2000.
minh has ......COLLECTED STAMPS SINCE 2000......

1. This is the first time he went abroad.
=> He hasn't went abroad.
2. She started driving 1 month ago
=> She hasn't drived for 1 month
3. We began eating when it started to rain
=> We have eaten since it started to rain
4. I last had my hair cut when I left her.
=> I haven't cut my hair since I left her.
5. The last time she kissed me was 5 months ago
=> She hasn't kissed me for 5 months.
6. It is a long time since we last met.
=> We haven't met for a long time
7. When did you have it?
=> How long have you had it?
8. This is the first time I had such a delicious meal.
=> I haven't had such a delicious meal.
9. I haven't seen him for 8 days
=> The last day I've seen him was 8 days ago.
10. I haven't taken a bath since Monday
=> It is Monday since I took a bath.

Rewrite the sentences using PAST SIMPLE or PRESENT PERFECT TENSE.
1. I moved to Ho Chi Minh city in 2000.
=> I have moved to Ho Chi Minh city since 2000
2. She began to learn English four years ago.
=> She has learnt English for four years
3. They started practicing tennis when they were in high school.
=> They have practised tennis since they were in high school
4. They started to French in 2004.
=> They have learnt French since 2004
5. We began learning English six months ago.
=> We have learnt English for six months
6. When did she begin to work for this company?
=> How long has she worked for this company ?
7. The last time they visited London was two years ago.
=> They haven't visited London for two years
8. He hasn't gone out with her for two years.
=> It's two years since he last went out with her
Rewrite the sentences using PAST SIMPLE or PRESENT PERFECT TENSE.
1. I moved to Ho Chi Minh city in 2000.
=> I have moved to Ho Chi Minh city since 2000..................................................
2. She began to learn English four years ago.
=> She has learned English for four years.................................................
3. They started practicing tennis when they were in high school.
=> They have practiced tennis since they were in high school ...............................................................................4. They started to French in 2004.
=> They have learned French since 2004...............................
5. We began learning English six months ago.
=> We have learned English for six months .....................................................
6. When did she begin to work for this company?
=> How long has she begun to work for this company .................................................?
7. The last time they visited London was two years ago.
=> They haven't visited London for two years.............................................................
8. He hasn't gone out with her for two years.
=> It's two years since he has gone out with her...........................................................
1. Ba began collecting stamps three years ago. -> Ba has collected stamps for three years.
2. We started living here twenty years ago. -> We have lived here for twenty years.
3. I haven’t seen Nam for five years. -> It is five years since i haven't nam.
4. She hasn’t visited us for four months. -> The last time she visited us four months ago.
5. I know Susan. I met her in 2006. -> I have met susan since 2006.
6. Minh has a digital camera. He bought it in 2007. -> Minh has had a digital camera since 2007.
7. Mai plays the piano. She started playing the piano when she was ten years old.
-> Mai has played the piano since she was ten years old.
8. Barbara is in Ha Noi now. She arrived there five months ago. -> Barbara has arrived hanoi for five months.
9. They started living here two years ago. -> It is two years since they have started living here.
10. My shoes are different from yours. -> Your shoes and mine are not similar.