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1) This is the first time he went abroad.
=> He hasn't gone abroad before
2) She started driving 1 month ago.
=> She has 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 had my hair cut 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 since 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 I saw him was 8 days ago
10) I haven't taken a bath since Monday.
=> It is
It is a long time since we last met.
=> We have not met for a long time.
It is a long time since we last met.
\(\Rightarrow\)We have not met for a long time
1. This is the first time he went abroad.
=> He hasn't went 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 had my hair cut 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 such a delicicous meal.
=> I haven't such a delicicous 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.
=> The last time i took a bath was in Monday
Mình cũng không biết có đúng hay không nên bạn cứ tham khảo thử xem nhá. Cảm ơn 
1. The last we met her was in August .
=> We have not met her since august
VIII. Rewrite the sentences:
1.We began eating when it started to rain.
->We have eaten since it started to rain
2.I last had my hair cut when I left her.
->I haven't cut my hair since I left her
3.The last time she kissed me was 5 months ago.
->She hasn't kissed me for 5 months
4.It is a long time since we last met.
->We haven't met for a long time
5.When did you have it?
->How long have you had it?
6.This is the first time I had such a delicious meal.
->I haven't had such a delicious meal before
7.I haven't seen him for 8 days.
->The last time I saw him was 8 days ago
8.I have studied English for 3 years.
->I began studying English 3 years ago
9.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
10.When did you start learning English?
->How long have you learned English?
11.We started living here fifteen years ago.
->We have lived here for fiffteen years
12.The last time she visited me was five years ago.
->She hasn't visited me for five years
13.I last wrote to my uncle in July.
->I haven't written to my uncle since July
14.We know him. We know his friends.(and)
-> we know him and his friends
15.The coat was soft. The coat was warm.(and)
-> The coat was soft and warm
16.I wanted to go. He wanted to stay.(but)
->I wanted to go but he wanted to stay
17.You can go there by bus. You can go there by train.(or)
->You can go there by bus or by train
18.I was feeling tired. I went to bed when I got home.(so)
->I was feeling tired so I went to bed when I got home..
19.She studied hard. She got bad marks in Maths.(although)
-> Although she studied hard, she got bad marks in maths
20.Quoc Tu Giam is older than other university.(oldest)
-> Quoc Tu Giam is the oldest university
21.I was feeling tired. I still worked at night.(but)
-> I was feeling tired but I still worked at night
VIII. Rewrite the sentences:
1.We began eating when it started to rain.
->We have eaten since it started to rain
2.I last had my hair cut when I left her.
->I haven't cut my hair since I left her
3.The last time she kissed me was 5 months ago.
->She hasn't kissed me for 5 months
4.It is a long time since we last met.
->We haven't met for a long time
5.When did you have it?
->How long have you had it?
6.This is the first time I had such a delicious meal.
->I haven't had such a delicious meal before
7.I haven't seen him for 8 days.
->The last time I saw him was 8 days ago
8.I have studied English for 3 years.
->I began studying English 3 years ago
9.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
10.When did you start learning English?
->How long have you learned English?
11.We started living here fifteen years ago.
->We have lived here for fiffteen years
12.The last time she visited me was five years ago.
->She hasn't visited me for five years
13.I last wrote to my uncle in July.
->I haven't written to my uncle since July
14.We know him. We know his friends.(and)
-> we know him and his friends
15.The coat was soft. The coat was warm.(and)
-> The coat was soft and warm
16.I wanted to go. He wanted to stay.(but)
->I wanted to go but he wanted to stay
17.You can go there by bus. You can go there by train.(or)
->You can go there by bus or by train
18.I was feeling tired. I went to bed when I got home.(so)
->I was feeling tired so I went to bed when I got home..
19.She studied hard. She got bad marks in Maths.(although)
-> Although she studied hard, she got bad marks in maths
20.Quoc Tu Giam is older than other university.(oldest)
-> Quoc Tu Giam is the oldest university
21.I was feeling tired. I still worked at night.(but)
-> I was feeling tired but I still worked at night
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
6. i haven't seen her for a long time
->i didn't see her a long time ago
7. how long have you learnt french?
->how long ago did you start learning French?
8. when did you strart to listen to classical music?
->how long have you listened to classical music?
9. i last saw her 10 years ago
->i haven't seen her for 10 years
10.how long have you bought this car
->when did you buy this car?
11. this is the first time he went abroad
->he hasn't gone abroad before
12.she started driving 1 month ago
->she has driven for 1 month
13.we began eating when it started to rain
->we have eaten since it started to rain
14.it is a long time since we last met
>we haven't met for a long time
15. when did you have it
->how long have you had it?
6. i haven't seen her for a long time->i didn't ..see her a long time ago .........
7. how long have you learnt french?->how long ago.....did you start learning EL ? .......
8. when did you strart to listen to classical music?->how long have you listened to classical music ?
9. i last saw her 10 years ago->i haven't seen her for 10 years
10.how long have you bought this car->when did you buy this car ?
11. this is the first time he went abroad->he hasn't gone abroad before
12.she started driving 1 month ago ->she has started driving for 1 month
13.we began eating when it started to rain ->we have eaten since it started to rain
14.it is a long time since we last met>we haven't met for a long time
15. when did you have it->how long have you had it ?
Chúc bạn học tốt 
1. We began eating when it started to rain
=> We have eaten since it started to rain.
2. My house is behind the supermarket.
=> The supermarket in front of my house.
3. Let's have a picnic in the park on the weekend.
=> Why do we go to the park on weekends?
4. No one in the class plays better than him.
=>He can play best in class.
5. Does your class have forty students?
=> Are there forty students in your class?
CHUYỂN ĐỔI TỪ HIỆN TẠI HOÀN THÀNH SANG QUÁ KHỨ ĐƠN ( VÀ NGƯỢC LẠI )
1) This is the first time he went abroad.
=> He hasn’t………………gone abroad before…………………………..
2) She started driving 1 month ago.
=> She has……………………been drving for a month ……………………………………
3) We began eating when it started to rain.
=> We have…………………been eating/ ate since it started to rain……………………………………
4) The last time she kissed me was 5 months ago.
=> She hasn’t………………………kissed me for 5 months……………………………
5) This is the first time I had such a delicious meal .
=> I haven’t………………had such a delicious meal before……………………..
6) Samuel started keeping a diary in 1997
=> Sumuel has........................been keeping/ kept a diary in 1997....................
7) We started learning English five years ago
=> We have............been learning/ learnt English for five years.................
8) I began living in Ho Chi Minh City when I was 8
=> I have.................been living in HCM City since I was 8......................
9) She has taught the children in this remote village for five months
=> She started............. to teach the children in this remote village for five months.................
10) He has written to me since April
=> The last time.........he wrote to me was in April........
11) She hasn't had a swim for five years
=> She last.............had a swim five years ago..................
12) They last talked to each other two months ago
=> They haven't......talked to each other for two months.....
13) The last time she saw her elder sister was in 1999
=> She hasn't....... seen her elder sister since 1999..........
14) She hasn't written to me for years
=> It's years..............since she last wrote to me....................
15) Robert and Catherine have been married for ten years
=> It's ten years.........since Robert and Catherine was married........
We have eaten since it started to rain