1.she has taught the children in this remote village for months 
->she started  teaching the children in this remote village months ago
2.I have married for 10 years
->I started marring 10 years ago
3.he has written to me since April 
->He started writting to me April ago
4.I have stayed away from school for 4 months 
->I started staying away from school 4 months ago
5.I have learnt French for 3 years
->I started learning French 3 years ago
6.she has loved me since we were in middle school
->She began loving me when we were in middle school 
7.I have gone to bar since 2000
->I began going to bar when 2000
8.she has smoked for a long time
->she started smoking a long time ago

1/Samel has kept a diary since 1997

2/We have learnt english for 5 years

3/I have lived in HCM city since I was 8

4/She started teaching the children in this remote village 5 months ago

5/She last wrote 5 years ago

6/The last time he wrote was April

7/They haven't talked for 2 months

8/They haven't seen her elder sister since 1999

9/It is years since she last wrote to me

10/It's ten years since Robert and Catherine married

`1`/Samel has kept a diary since 1997

`2`/We have learnt english for 5 years

`3`/I have lived in HCM city since I was 8

`4`/She started teaching the children in this remote village 5 months ago

`5`/She last wrote 5 years ago

`6`/The last time he wrote was April

`7`/They haven't talked for 2 months

`8`/They haven't seen her elder sister since 1999

`9`/It is years since she last wrote to me

`10`/It's ten years since Robert and Catherine married

`->` 

1/Samel has kept a diary since 1997

2/We have learnt english for 5 years

3/I have lived in HCM city since I was 8

4/She started teaching the children in this remote village 5 months ago

5/She last wrote 5 years ago

6/The last time he wrote was April

7/They haven't talked for 2 months

8/They haven't seen her elder sister since 1999

9/It is years since she last wrote to me

10/It's ten years since Robert and Catherine married

chuyển đổi thì hiện tại hoàn thành sang quá khứ đơn

1 This is the first time he went abroad

he hasn't......... gone abroad before ......

2 she started driving 1 month ago

she has ........... driven 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 ....... my hair cut since I left her ....

5 the last time she kissed me was 5 months ago

she hasn't ........ met me for 5 months.....

6 It is a long ime 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... time I've seen him was 8 days ago....

10 I haven't taken a bath since Monday

It is... 3 / 2 ... days since I last took a bath...

1 The last time I cooked was 3 years ago.

-> I haven't cooked for 3 years

2 When did you buy that bag?

->When have you bought that bag

3 I last saw him 2 days ago

->I haven't seen him for 2 days

4 I started writing blog 2 months ago

->I haven't written blog for 2 months

5 she began living in Danang when she was child

->She has lived in Da Nang since she was a child

6 It is 5 years since i last visit my grandparents

->I haven't visited my grandparents for 5 years

7 when did you start loving him 

->How long have you loved him

8 The last time I went to bar was 6 years ago

->I haven't gone to bar for 6 years

9 it's years since she wrote to me 

->She hasn't written to me for years

10 I last too a bath 2 days ago

->I haven't taken a bath for 2 days

1.I began living in ho chi minh city when I was 8

-->I have LIVED IN HCM CITY SINCE I WAS 8.

2.She has taught the children in this remote village for five months.

-->she started TEACHING CHILDREN IN THIS REMOTE VILLAGE 5 MONTHS AGO.

3.He hasn't written to me since April.

-->the last time HE WROTE TO ME WAS IN APRIL.

4.She hasn't had a swim for five years.

-->she last HAD A SWIM 5 YEARS AGO.

5.They last talked to each other two months ago.

-->They haven't TALKED TO EACH OTHER FOR 2 MONTHS.

6.The last time she saw her elder sister was in 1999

-->She hasn't SEEN HER ELDER SISTER SINCE 1999.

1.I began living in ho chi minh city when I was 8

-->I have lived in Ho Chi Minh city since I was 8.

2.She has taught the children in this remote village for five months.

-->she started teaching the children in this remote village five months ago.

3.He hasn't written to me since April.

-->the last time he wrote to me was April.

4.She hasn't had a swim for five years.

-->she last had a swim five years ago.

5.They last talked to each other two months ago.

-->They haven't talked to each other for two months.

6.The last time she saw her elder sister was in 1999

-->She hasn't seen her elder sister since 1999.

1. I began living in Ho Chi Minh City when I was 8.

\(\Rightarrow\) I have lived in Ho Chi Minh City ince I was 8.

2. She has taught the children in this remote village for five months.

\(\Rightarrow\) She started teaching the children in this remote village five months ago.

3. He hasn't written to me since April.

\(\Rightarrow\) The last time he wrote to me was in April.

4. She hasn't had a swim for five years.

\(\Rightarrow\) She last had a swim five years ago.

5. They last talked to each other two months ago.

\(\Rightarrow\) They haven't talked to each other for two months.

6. The last time she saw her elder sister was in 1999.

\(\Rightarrow\) She hasn't seen her elder sister since 1999.

bài tập viết lại thì hiện tại hoàn thành và quá khứ đơn:

1.she has taught the children in this remote village for five months

->she started............to teach the children in this remote village five months ago...........

2.he has written to me since April

->the last time..........he wrote to me was in April...................................

3.she hasn't had a swim for five years

->she last............had a swim five years ago..........................

4.they last talked to each other two months ago

->they haven't........talked to each other for two months............

5.they last tiem she saw her elder sister was in 1999

6.she hasn'twritten to me for years

->it's years..............since she last wrote to me ...............

7.Robert and Catherine have been married for ten years

->it's ten years...........since Robert and Catherine were married...........

8.it's over six months since he wrote to you?

->John ...................hasn't written to you for over six months..........

9.how long is it since you rode a bicyde?

->when .................did you ride a bicyde?.......................................

10.how long is it since he wrote to you?

->when.............did he write to you?.......................................

2. .... He wroting to me , was in april...

1. We started learning English 10 years ago

2. We last met a long time ago

3. Ms Ann took part in any voluntary programs 4 years ago

4. The last time I met my family was last Christmas

5. When did you start living here ?

6.  The volunteers provided free food and fresh water to homeless people yesterday

7. The doctor quitted his job in the local hospital and move to the central  hospital 2 days ago

8. The last time the children had a long vacation was last year

9. The last time they visited their parents was 3 months ago

10. We broke up 2 years ago

. Chuyển các câu sau từ thì hiện tại hoàn thành sang thì quá khứ đơn sao cho nghĩa của câu không thay đổi.

1. We have learned English for 10 years.

=> _____________________ We started learning English 10 years ago. _______________________________________________.

2. It has been a long time since we last met.

=> ____________________ The last time we met was a long time ago.________________________________________________.

3. Ms. Ann hasn’t taken part in any voluntary programs for 4 years.

=> ___________________  The last time Mr.s Ann took part in many voluntary programs was 4 years ago._________________________________________________.

4. I haven’t mer my family since last Christmas.

=> __________________________ The last time I met my family was (the) last Christmas.__________________________________________.

5. How long have you lived here?

=> _______________________ When did you start living here ?_____________________________________________.

6. The volunteers have provided free food and fresh water to homeless people since yesterday.

=> ___________________ The volunteers provided free food and fresh water to homeless people yesterday. _________________________________________________.

7. The doctor has quitted his job in the local hospital and moved to the central hospital for 2 days.

=> _____________________ The doctor quitted his job in the local hospital and moved to the central hospital 2 days ago. _______________________________________________.

8. The children haven’t had a long vacation since last year.

=> ___________________________  The last time the children had a long vacation was last year. _________________________________________.

9. They haven’t visited their parents for 3 months.

=> _____________________ The last time they visited their parents was 3 months ago._______________________________________________.

10. It has been 2 years since we broke up.

=> ___________________ We broke up 2 years ago. _________________________________________________.

1. We have learned English for 10 years.

=> _____________________ We started learning English 10 years ago. _______________________________________________.

2. It has been a long time since we last met.

=> ____________________ The last time we met was a long time ago.________________________________________________.

3. Ms. Ann hasn’t taken part in any voluntary programs for 4 years.

=> ___________________  The last time Mr.s Ann took part in many voluntary programs was 4 years ago._________________________________________________.

4. I haven’t mer my family since last Christmas.

=> __________________________ The last time I met my family was (the) last Christmas.__________________________________________.

5. How long have you lived here?

=> _______________________ When did you start living here ?_____________________________________________.

6. The volunteers have provided free food and fresh water to homeless people since yesterday.

=> ___________________ The volunteers provided free food and fresh water to homeless people yesterday. _________________________________________________.

7. The doctor has quitted his job in the local hospital and moved to the central hospital for 2 days.

=> _____________________ The doctor quitted his job in the local hospital and moved to the central hospital 2 days ago. _______________________________________________.

8. The children haven’t had a long vacation since last year.

=> ___________________________  The last time the children had a long vacation was last year. _________________________________________.

9. They haven’t visited their parents for 3 months.

=> _____________________ The last time they visited their parents was 3 months ago._______________________________________________.

10. It has been 2 years since we broke up.

=> ___________________ We broke up 2 years ago