1/ I haven't enjoyed myself so much for ages

→It's ages since i enjoyed myself.

2/ It took us forty minutes to fly from Vinh to HN

→We spent forty minutes flying from Vinh to Ha Noi.

3/ I have been there for 5 years

→It's 5 years since i was there.

4/ It took her two hours to explain the lesson

→She spent  two hours explaining the lesson.

5/ This is the first time i have eaten this food

→I haven't  eaten this food before.

k cho mình nha ~ thanks

1/ I haven't enjoyed myself so much for ages

→It's ages since I enjoyed myself

2/ It took us forty minutes to fly from Vinh to HN

→We spent forty minutes flying form Vinh to HN 

3/ I have been there for 5 years

→It's 5 years since I was there

4/ It took her two hours to explain the lesson

→She spent 2 hours explaining the lesson

5/ This is the first time i have eaten this food

→I haven't eaten this food before

1/ I haven't enjoyed myself so much for ages

→It's ages since I enjoyed myself

2/ It took us forty minutes to fly from Vinh to HN

→We spent forty minutes flying form Vinh to HN 

3/ I have been there for 5 years

→It's 5 years since I was there

4/ It took her two hours to explain the lesson

→She spent 2 hours explaining the lesson

5/ This is the first time i have eaten this food

→I haven't eaten this food before

1) I haven't heard from her for 5 years

2) It took me 2 days to travel to Ho Chi Minh City

3) It's ages since I enjoyd myself

1/ The last time i heard from her was 5 years ago

→I haven't heard from her for 5 years.

2/ I had to spend 2 days traveling to Ho Chi Minh City

→It took 2 days to travel to Ho Chi Minh city.

3/ I haven't enjoyed myself so much for ages

→It's ages since i enjoyed myself.

1/ The last time i heard from her was 5 years ago

\(→\)I haven't heard from her for 5 years . 

2/ I had to spend 2 days traveling to Ho Chi Minh City

\(→\)It took me 2 days to travel to Ho Chi minh City

3/ I haven't enjoyed myself so much for ages

\(→\)It's ages since i enjoyed myself

đáp án :

5. It's over a year since I last went to see them

I haven't seen them

6.It's more than ten years since I last played football

I haven't play football for ten years

1/ I wrote this book in 3 weeks

→It took me 3 weeks to write this book .

2/ It's ages since they heard from her

→They haven't heard from her for ages.

3/ The last time i heard from her was 5 years ago

→I haven't  heard from her for 5 years .

4/ I haven't played tennis for 6 years

→The last time I played tennis was 6 years ago

5/ I had to spend 2 days traveling to HCM city

→It took me 2 days to travel to HCM City .

1/ I wrote this book in 3 weeks

→It took me 3 weeks to wrote this book

2/ It's ages since they heard from her

→They haven't heard from her for ages

3/ The last time i heard from her was 5 years ago

→I haven't heard from her for 5 years 

4/ I haven't played tennis for 6 years

→The last time I played tennis was 6 years ago

5/ I had to spend 2 days traveling to HCM city

→It took me 2 days to travelling to HCM city

1) This is the first time I saw the film

2) I haven't cut my hair for 2 months 

3) It took me 5 hours to prepare the meal 

4) I haven't gone for coffee for 5 days

5) I have started working as a writer for 2 years

1/ I haven't seen the film before

\(→\)This is the first time I saw the film .

2/ I last had my hair cut 2 months ago

\(→\)I haven't cut my hair for 2 months

3/ I spent 5 hours preparing the meal

\(→\)It took me 5 hours to prepair the meal .

4/ The last time i went for coffe was 5 days ago

→I haven't  gone for coffe for 5 day .

5/ I started working as a writer 2 years ago

\(\rightarrow\)I have worked as a writer for 2 years 

1, We spend forty minutes flying from Vinh to Ha Noi.

3, She spent 2 hours explaning the lesson.

4, I haven't eaten this food before. 

4/ I haven`t eaten this food

1.We spent forty minutes flying from Vinh to Ha Noi.

2.It's 5 years since i was there.

3.She spent 2 hours explaining the lesson.

4.I haven't eaten this food before.

11. I haven't seen her since 2007  -> it's...13 year since I.last saw her......

12.I haven't been to the dentist's for 2 years -> it's..2.year since the last time I went to the dentist........

13. It's last year since i last heard from her -> I have..heard.from her for 1 year......

14. It's 2 years since i saw her -> I haven't...seen her for 2 years.

15.Na and Mi last visited their parents in 1998 -> it's...22 year since the last time Na and Mi visited their parents...

16. She last visited her parents in 1998 -> it's..22 year since the last time she visited her mother......

17.The last time i saw him was ten years ago -> it's..ten years since the last time I saw.him...

18. They haven't phoned us for a month -> it is.a month since the last time they.phoned ours..........

19. They haven't seen my friend for 1 month  -> It is 1 month.since the last time they.saw my.friend........

20. John has not had his hair cut for over six months -. it is..over 6 months since the last time John cut his hair.........

21.Lan and Maryam have corresponded for 3 years -> it is 3 years .since the last time Lan and Maryam corresponded............

22. Lan hasn't written to Maryam gor 2 months -> Lan didn't..write to Maryam 2 months ago.......

Present perfect vs present simple tense  1. I haven't seen him for 8 days 

=> The last time I met him was 8 years ago

2.I haven't taken a bath since sunday 

=> It is 6 days since I took a bath

3.It's 2 years since I had a punture 

=> I have had a punture for 2 years.

4.It's 2 months since he earned any money 

=> He has eared any money for 2 months

5. He last shaved the day before yesterday 

=> He hasn't shaved the day since yesterday

6.I last drank champagne at my brother 's wedding 

=> I haven't drunk champgne since my brother's wedding

7.It's 2 years since I was last in Rome 

=> I haven't been in Rome for 2 years

8.I saw Tom last on his wedding day 

=> I haven't seen Tom since his wedding day

9.I last ate raw fish when i was in Japan 

=> I haven't eaten raw fish since i was in Japan

10.It's years since Mary last spoke french 

=> Mary hasn't spoken French for year