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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..driven for 1 month....
3. We began eating when it started to rain -> We have.eatten before it started to rain...
4. I last had my hair cut when i left her -> I haven't..cut my hair since the last time I left her........
5.The last time she kissed me was 5 months ago -> she hasn't..kissed me for 5 month......
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.is it since 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 seen him was 8 days........
10.I haven't taken a bath since Monday -> It is...Monday since I last took a bath.................
1. he hasn't gone abroad before.
2. she has driven for a month.
3. we have eaten since it started to rain.
4. i haven't my hair cut since i left her.
5. she hasn't kissed me for 5 month.
6. we haven't met each other for a long time.
7. how long have you had it?
8. i haven't had such a delicios meal before.
9. the last time i saw him was 8 days ago.
10. it is monday since i took a bath.
1.The last time I played football was in 1970.
=> I haven't played football since 1970.
2. The last time it rained was a fortnight ago.
=> It hasn't rained for four night.
3. The last time Lucy wore that dress was at Barbara’s wedding.
=> Lucy hasn't worn that dress since Barbara's wedding.
4. The last time my father was to Vung Tau was 2 years ago.
=> My father hasn't been to Vung Tau for 2 years.
5.The last time Betty rode to work was a fortnight ago.
=> Betty hasn't ridden to work for fornight.
6.He hasn’t played tennis since 1990.
=> The last time he played tennes was in 1990.
7.I haven’t met her for 2 months.
=> The last time I met her was 2 months ago.
B –
S + V QKĐ – start / begin + ………………… + ago
↔ S + V HTHT / HTHTTD + ………………… + since / for (bỏ start / begin)
Rewrite the following sentences, using the words given.
Ex: - He started workingfor this factory a year ago.
(He has been working for this factory since last year / for a year.
1.Tom began playing the piano 4 years ago.
=> Tom has been playing the piano for 4 years.
2. I started cooking for the party 4 hours ago.
=> I have been cooking for the party for 4 hours.
3. She started working as a secretary 2 years ago.
=> She has been working as a secretary for 2 years.
4. My father is reading a newspaper. He started 2 hours ago.
=> My father has been reading a newspaper for 2 hours.
5.My sister began to study English a year ago.
=> My sister has been studying English for 1 year.
6.Scientists began to fight against AIDS in 1980.
=> Scientists have been fighting against AIDS since 1980.
7.The Browns have been living in London for 20 years.
=> The Browns began to living in London 20 years ago.
8. John has worked for this electronics firm since 1999.
=> John started working for this electronics firm in 1999.
9. Women have been fighting for their rights since the middle of the 20thcentury.
=> Women began to fight for their rights in the middle of the 20th century.
10. Jack and Jill have learned to drive for 2 weeks.
=> Jack and Jill started learning to drive 2 weeks ago.
11. How long have you studied English?
=> When did you started studying English?
12. When did you begin to do research on lung cancer?
=> How long have you begun to do research on lung cancer?
C-
S + V HTHT – PĐ + ………… +before
↔ It / This is the first time + S + V HTHT – KĐ +………… (bỏ before)
Rewrite the following sentences, using the words given:
Ex : I haven’t seen that film before.
(It / This is the first time I have seen that film.
1.My father hasn’t driven a car before.
=> This is the first time my father has driven a car.
2.I’ve never met such a famous singer before.
=> It’s the first time I have met such a famous singer.
3.She has never been to the ballet before.
=> It’s the first time she has been to the ballet.
4.She hasn’t drunk Coca Cola before.
=> This is the first time she has drunk Coca Cola.
5.I have never read this book before.
=> It’s the first time I have read this book.
6.I have never met such an intelligent student before.
=> It’s the first time I have met such an intelligent student.
7.This is the first time my grandfather has been to
Viết lại câu sao cho nghĩa không đổi:
1. The last time we saw her was of Christmas day.
=> We haven’t seen her since Chritmas day.
2. I haven’t eaten this kind of food before.
=> This is the first time I have eaten this kind of food.
3. It started raining an hour ago.
=> It has rained for an hour.
4. We haven’t visited my grandfather for two months.
=> The last time we visited my grandparents was two months ago.
5. i have studied English for three years.
=> I began studying English three years ago.
6. My brother hasn’t seen his best friend for nearly five years.
=> It's nearly 5 years since my brother didn't see his best friend
59. The last time I really enjoyed myself was your birthday party.
I haven’t __enjoyd__myself since your birthday party___________________________________________
60. It's nearly 20 years since my father saw his brother.
My father hasn’t __seen his brother for 20 years_______________________________________
61. When did you learn to drive?
How long is it __sicne you learned to drive________________________________________
62. The last time I went swimming was when we were in Spain.
I haven’t __gone swimming since we were in __Spain__________________________________________
63. You haven't tidied this room for weeks.
It’s weeks _since the last time you tidided_this room___________________________________________
64. We started looking for a flat 2 months ago and we are still looking.
We have _looked for a flat for 2 months____________________________________________
65. This is the first time I've been to a night club
I haven’t _been to a night club before_____________________________________________
66. They have never heard such a thing before.
This is the first time _they have heard such a thing_____________________________________
67. Noone has challenged his authority before.
This is the first time __Noone has challenged his authority____________________________________
68. She left university 2 years ago
It is _2 years since she left university_________________________________________________
69. My mother was the most warm-hearted person I've ever known.
I have _not met the most warm-hearted person my mother before________________________________________________
I haven't enjoyed myself since your birthday party
My father hasn't seen his brother for 20 years
How long is it since you learned to drive
I hasn't swum since we were in Spain
It's weeks since the last time you tidied this room
We have been looking for a flat for 2 months
I haven't been to a night club before
This is the first time they've heard such a thing
This is the first time one has challenged his authority.
It is for 2 year since she left university
1, We haven't seen her since Christams
2, This is the first time I have tried this kind of food
3, It has rained for an hour ago
4, The last time we visited my grandparents was two years ago
5, I began studying three years old
6, It 's nearly 5 years since my brother saw his best friend
7, How long have you started learning EL ?
8, Jane is the same height as her older sister
Học tốt nha bạn 
Ex19: Write the second sentence so that it has a similar meaning to the first :
1. The last time we saw her was on Christmas Day.
We haven't SEEN HER SINCE CHRISTMAS.
2. I haven't eaten this kind of food before.
This is THE FIRST TIME I HAVE TRIED THIS KIND OF FOOD.
3. It started raining an hour ago.
It has RAINED FOR AN HOUR.
4. We haven't visited my grandparents for two months.
The last time WE VISITED MY GRANDPARENTS WAS TWO MONTHS AGO.
5. I have studied English for three years.
I began STUDYING ENGLISH THREE YEARS AGO.
6. 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.
7. When did you start learning English?
How long DID YOU START LEARNING ENGLISH?
8. Jane is as tall as her older sister.
Jane is the same HEIGHT AS HER OLDER SISTER.
I. Rewrite the following sentences.
1. It's ages since I took any photos.
- I have....not taken photos for ages........................................
2. Tom has not had his hair cut for a moth.
- It's.........a month since Tom last had his hair cut...............................................
3. Tom hasn't seen "Titanic" before.
- It's the first time...... the first time Tom saw ''Titanic''.............................
4. The last time I was abroad was in the summer of 2000.
- I...............not been abroad since the summer of 2000.......................................................................
5. Tom last watched T.V on New Year's Day.
- Tom.......hasn't watched TV since New Year's day.....................................................................
6. It's three months since the windows were cleaned.
- The windows...........haven't been cleared for 3 months.................................................
7. My friends began studying English fifteen years ago.
- My friends..........has studied English for 15 years.............................................................
8. My father hasn't played football since 1980.
- The last time........my father played football was 1980..............................................
9. He hasn't drunk any beer since the accident happened.
- He last..... drank beer when the accident happened................................................................
10. My brother started smoking two years ago.
- My brother..........has smoked for 2 years............................................
11. We haven't met Tom since he got married.
- We last.......met Tom when he got married....................................................
12.This is the first time I ate this kind of foos.
- I haven't...... .....eaten this kind of food before................................................
13. It's four years since I got maried.
- I have.......not got married for 4 years........................................
14. He has been working for this factory for three years.
- He started.............working for this factory three years ago...........................................................
3. Tom hasn't seen "Titanic" before.
- It's the first time Tom has seen "Titanic"
4. The last time I was abroad was in the summer of 2000.
- I haven't been abroad since the summer of 2000 7. My friends began studying English fifteen years ago.- My friends have studied English for fifteen years
8. My father hasn't played football since 1980.
- The last time my father played football was in 1980
13. It's four years since I got maried.
- I have been married for four years
didn't call her up 2 days ago.
I haven't called her uo for 2 days
Did you finish the test an hour ago?
Have you finished the test for an hour?
I started playing tennis last year.
I've played tennis since last year
I haven’t seen him for a week
It’s a week since I last saw him
When did you first see her?
How long have you first seen her?
She didn't learn hard in 2005.
She hasn't learned hard since 2005
He has used the computer since he was 19
He began using the computer when he was 19
Peter has watched that film since last month
It’s last month since Peter last watched that film
The boys began playing soccer a year ago.
The boys have played soccer for a year
Has Dad worked here since I was born?
Did Dad work here when I was born?
The last time We saw her was 2 months ago
We haven ‘t seen her for 2 months
Tom did not work here when I met him on the street
Tom has not worked here sice I met him on the street
This is the first time he forgot his bag
He has never forgotten his bag before
Haven’t you used this car for a long time ?
Did you use this car a long time ago?
Is it the first time your father drunk that wine
Did your father drink that wine before?
This car is the most mordern I’ve used
I’ve never used such the most modern car before
It’s four years since I learnt in Hoa Lien school
I have learnt in Hoa Lien School for 4 years
She last wore that dress at her sister’s wedding
she hasn’t worn that dress since her sister's wedding
When did you start working in that factory?
How long have you worked in that factory?
Nam hasn’t written to his friend since 2005
It is 2005 since Nam last wrote to his friend
It is the first time I have heard about that
I have never heard about that before
They have’t played volleyball since last year
It is last year since they last played volleyball
Mr Nam has worked in this factory for years
Mr Nam started working in this factory years ago
Hoa hasn’t met me since she went abroad
Hoa last met her when she went abroad
Mr Lam started learning French on september 2nd
Mr Lam has learned French since September 2nd
He has used this car since he bought a new house
He began using this car when he bought a new house
She didn't learn hard in 2005.
She hasn't learned hard since 2005
Peter watched this film when he came home.
Peter has watched this film since he came home
It's a week since I last saw her.
I haven't seen her for a week
The boys began playing soccer a year ago.
The boys have played soccer for a year
Did Dad start to work here when I was born?
Has Dad worked here since I was born?
When did you first see her?
How long have you first seen her?
The last time We saw her was 2 months ago
We haven ‘t seen her for 2 months
Tom did not work here when I met him on the street
Tom has worked here since I met him on the street
This is the first time he forgot his bag
He has never forgotten his bag before
Children began to play games at 9pm
Children have played games since 9 p.m
When did you first know her ?
How long have you first known her?
I have never tasted the cake before
This is the first time I've ever tasted the cake
I haven’t played tennis since 1990
The last time I've played tennis was in 1990
I haven’t been to Briton for three years
The last time I've been to Briton was three years ago
I have never met such a famous person before
It’s the first time I've vẻ met such a famous person
I’ve never eaten this before
It’s the first time I've ever reaten this
Rewrite
1. Samuel started working as a singer in 2017
-> Samuel has ____worked as a singer since 2017___
2. How long is it since you rode a bike ?
-> When __did you ride a bike?___
3. When did he last write to you ?
-> How long ____is it since he last wrote to you ?______
4. She has taught the children in his remote village for five months
-> She started ___teaching the children in her remote village five months ago ____
5. This is the first time he went abroad
-> He hasn't ____gone abroad before___
1.Doing physical exercises is good for you. It's..good for you to do physical exercises......
2.Jenny started working as a singer six yeara ago. Jenny has.worked as a singer for 6 years....
3.The last time I read this book was three months ago. I haven't..read this book for 3 month......
4.Let's have a walk before going to bed. What.....about having a walk before going to bed.
5.This is the first time he has ever gone abroad. He has...never gone abroad before..
6.I play more computer games than my brother. My brother plays...computer game less than me...
7.How long have you studied art ? When........did you start studying art.....?