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

1.He last paid taxes in 1970

~ He hasn't paid taxes since 1970.

2. I last ate meat 5 years ago 

~ I haven't eaten meat for 5 years.

3. It's 3 months since the windows were cleaned 

~ The windows haven't been cleaned for 3 months.

4. It's years since I took photographs

~ I haven't taken photographs for years.

5. I last watched TV on new years's day

~ I haven't watched TV since new year's day.

6. It's 3 months since he wrote to me

~ He hasn't written to me for 3 months.

7. The last time I was aboard was in the summer of 1978

~ I haven't been abroad since the summer of 1978.

8. It's ten years since that house was lived in 

~ That house hasn't been lived for 10 years.

9.I haven't seen him for 2 months 

~ I last saw him 2 months ago.

10.I haven't been to a concert for over a year 

~The last time I was to a concert was over a year ago.

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

Cấu trúc:

It + be + time + since.........
 

Trích:

1.I haven't enjoyed myself so much for years.
It's years since I ẹnjoyed myself

2.The telephone rang for hours.
It's hours since the telephone rang                                                
3. I haven't seen him for ages
It's ages since I saw him

tick nha

1 I didn't go to a concert ages ago

2 Sarah last saw her friends when he left for the united state

1. Sarah has lived in Paris .since.. 1995

2. Paul has lived in London ..for. ten years

3. I'm tired of waiting. We've been sitting here ..for. an hour

4. Kevin has been looking for a job .since.. he left school

5. I haven't been to a party.for.ages

6. I wonder where Joe í. I haven't seen him. since..last week

7.Jane is away. She's been away.since..Friday

8. The weather is dry. It hasn't rained.for..a few weeks

Write for or since:

1. Sarah has lived in Paris since 1995

2. Paul has lived in London for ten years

3. I'm tired of waiting. We've been sitting here for an hour

4. Kevin has been looking for a job since he left school

5. I haven't been to a party for ages

6. I wonder where Joe í. I haven't seen him since last week

7.Jane is away. She's been away since Friday

8. The weather is dry. It hasn't rained for a few weeks

1. Sarah has lived in Paris since 1995

2. Paul has lived in London for ten years

3. I'm tired of waiting. We've been sitting here for an hour

4. Kevin has been looking for a job since he left school

5. I haven't been to a party for ages

6. I wonder where Joe is. I haven't seen him since last week

7.Jane is away. She's been away since Friday

8. The weather is dry. It hasn't rained for a few weeks

1.  It's ages since I saw her

2.  I haven't met George for two weeks

3. They arrived here three months ago

4.  We have lived in Istanbul for 12 years

5. I haven't seen my girlfriend for 5 days