1. I last saw him in 2017

-> I haven’t seen him since 2017

2. The last time we saw our best friends was in 2009.

->We haven’t  seen our best friends since 2009.

3. They can’t go fishing tomorrow because they have to finish their reports.

-> If they didn't have to finish their reports, they could go fishing tomorrow

4. After finishing my homework, I went to bed.

-> As soon as........I finished my homework, I went to bed............................... .......................................

5. During our dinner, she called us.

-> When. ......we were having dinner, she called us.................................. .......................................

6. He cleans the doors every week.

->The doors......are cleaned everyweek................................. .......................................

7. Mr Ba often went fishing when he was young.

->Mr Ba used ......to go fishing when he was young.................................. .......................................

8. When did you start learning French?

->How long.....have you learnt French.................................. .......................................

) It is a long time since we last met.

       => We haven’t……met for a long tine………………………………………………………

37) When did you have it ?

=> How long ……have you had it…………………………………………………………….?..

38) This is the first time I had such a delicious meal .

=> I haven’t………had such a delicious meal before……………………………………………………….…….

1.you should get an electrician…to check….the eletricity system in your house (check)

2.we haven’t met each other since we graduated

—>We last…met each other when we graduated .

—>The last time…we met each other was when we graduated.

1. to check

2. we last met each other when we graduated

The last time we met each other was when we graduated

8. When did you learn to drive?
 How long is it have you learnt to drive?
9. The last time I went swimming was when we were in Spain.
 I haven’t gone swimming since we were in Spain
10. You haven't tidied this room for weeks.
 It’s weeks since you last tidied this room.
11. We started looking for a flat 2 months ago and we are still looking.
 We have been looking for a flat for 2 months.
12. This is the first time I've been to a night club
 I haven’t been to a night club before.
13. They have never heard such a thing before.
 This is the first time they have heard such a thing.
14. Noone has challenged his authority before.
 This is the first time someone has changed his authority.
15. She left university 2 years ago
 It is 2 years since she left university.
16. My mother was the most warm-hearted person I've ever known.
 I have never known a more warm-hearted person than my mother.
17. I haven't been able to see them for over a year.
 It is over a year since I was able to see them.
18. It stared to rain at 2 o'clock.
 It has rained since 2 o'clock.
19. I have never been to the ballet before.
 It is the first time I have ever been to the ballet.
20. John and Mary moved to Edinburgh twenty years ago.
 It is twenty years since John and Mary moved to Edinburgh.

1 , We haven't seen her since Christmas day

2 , This is the fisrt time I have eaten this kind of food

3 , It has rained for an hour

4 , The last time I visited my grandfather was two months ago

5 , I began studying EL three years ago

6 , It's five years since my brother saw his bestfriend

7 , How long did you start learning EL ?

8 , We have lived here for fifteen years

9 , She hasn't visted me for five years

10 , I haven't written to my uncle since July

11 , We have not become close friend for long time

12 , Minh has collected stamp since 2000

1. We haven't seen her was on Christmast day

2. This is the first time I have eaten this kind of food.

3.It has rained for an hour.

4. The last time we visited my grandparents for two - month.

5. I began studying English three years ago.

6.  It’s nearly five years since my brother saw his best friend.

7. How long have you learnt English?

8.We have lived here for fifteen years.

9. She hasn’t visited me for five years.

10. I haven't writen to my uncle since July.

11. We have become close friend for a long time.

12. Minh has collected stamps since 2000.

1. My sister last wrote to her pen pal give months ago.

My sister hasn’t ...written to her pen pal for 5 months ..............................................

 2. The last time we visited London was 3 years ago.

We haven’t ........visited London for 3 years..............................................

3. When did you study English?

How long .........have you studied English......................................................?

4. They began building this bridge ten months ago.

It’s ..........10 months since they began building this bridge...................................

5. My father started working in this factory when he left university.

My father has .....worked in this factory since he left university. .................................................

6. How long has he worked in the garden?

When did ………he started working in the garden……………………………………..?

7. He learnt English when he was 18.

He has ......learnt English since he was 18..............................................................

8. Mr. Hung became a doctor 12 years ago.

Mr. Hung has .....been a doctor for 12 years................................................................

9. My brother hasn’t seen his best friend for nearly 5 years.

It’s .......nearly 5 years since my brother last saw his best friend................................................................................

10. The last time we saw her was on Christmas.

We haven’t .........seen her since Christmas.....................................................................

1/I always see him working in the garden on Sundays. (work)
→ He always works in the garden on Sundays.

2/How long is it since they bought the house?
→ When did they buy the house?

3/It is years since we decorated the room.
→ We haven't decorated the room for years

4/I haven’t been to Bristol for three years.
→ The last time i went to bristol was three years

5/The last time I played tennis was ten years ago.
→ I haven't played tennis for ten years

6/My sister has studied French for two years.
→ My sister began studying French two years ago

7/I haven’t been to a football match for years.
→ It’s ages since I played football

8/It took us five hours to get to London.
→ We spent 5 hours getting to Lodon

9/We had to spend three hours opening the door.
→ It took 3 hours to open the door

The last time we saw her was when we left university

We last saw her was when we left university nhé

-The last time we saw her was when we left university

-We last seen her was when we left university 

^{20. We haven’t seen her since we left university.}

^{=>The last time we saw her was when we left university}

^{=>We last seen each other was when we left university} 

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.

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 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 before.

9) I haven’t seen him for 8 days. => The last time I saw him was 8 days ago

10) I haven’t taken a bath since Monday. => It is Monday since I last took a bath

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.