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1)Samuel started keeping a diary in 1997.
->Samuel has kept a diary since 1997.
2)We started learning English five years ago.
->We have learned English for fìve years
3)I began living in Ho Chi Minh city when I was 8.
->I have lived in Ho Chi Minh City since I was 8.
4)She has taught the children in this remote village for five months.
->She started teaching the children in this remote village five months ago
5)She hasn't had a swim for five years.
->She last hadn't had a swim five years ago
6)He hasn't written to me since April.
->The last time he wrote to me was 8 months ago
7)They last talked to each other two months ago.
->They haven't talked to each other for two months
8)The last time she saw her elder sister was in 1999.
-> She hasn't seen her elder sister since 1999.
9)She hasn't written to me for years.
->It's years since she didn't write to me
10)Robert and Catherine have been married for ten years.
->It's ten years since Robert and Catherine had married
11)It's two weeks since they cleaned their room.
-> They have cleaned their room for two weeks
12)It's over six months since John had his haircut.
->John has had his hair cut for over six months
13)How long is it since you rode a bicycle?
->When did you write a bike?
14)How long is it since he wrote to me?
->When did he last write to me?
15)When did he last talk to you?
->How long is it since he talked to you?
17)We have never eaten this kind of food before.
->It's the first time I have eaten that kind of food
18)This is the first time I have seen this film.
->I have never seen this film
19)John began playing the piano ten years ago.
->John has played the piano for ten years
1/Samel has kept a diary since 1997
2/we have learnt english for 5 years
3/i have lived in HCMcity since i was 8
4/she started teaching the childrenin this remote village 5 months ago
5/she last wrote 5 years ago
6/the last time he wrote wasApril ago
7/they havent talken for 2 months
8/they havent seen her elder sister since 1999
9/it is years since she last wrote to me
10/it's ten years since Robert and Catherine married
11/they have cleaned their room for 2 weeks
12/John has jised hair cutfor over 6 moths
13/when did you last ride a bycle
14/when did he last write to me
15/how long is it since he talken to you
16/how long is it since you telephoneed him
17/it is the first time i have eatten this kind of food
18/i have never seen this film before
19/John has played the piano for 10 years
20/he started giving up smoke i2 months ago

1. He hasn't won abroad before
2. She has driven for a month
3. We have eaten since it start to rain
4. I haven't cut my hair since I left her
5.She hasn't kissed me for 5 month
6.We haven't met for a long time
7.How long have you had it ?
8. I haven't had such a delicous meal
9.The last day I've seen him was 8 days ago
10.It's Monday since I took a bath
11. I have played guitar since I was 16
12. They have never visited to the Greek island before
13. We have already been to a rock concert
14. She has just arrived
15. He has lived here for two years
16. She still has notphoned her mother
17.I have written this letter for a week
18. It has snowed since this morning
19. Tourist has visited libiza for the 60s

III / rewrite , using present perfect tense or simple past tense
1. Mrs. Huong began to work here five months ago
-> mrs. Huong has ....WORKED HEARE FOR FIVE MONTHS......
2. The children started learning English in January
-> the children have...LEARNED ENGLISH SINCE JANUARY....
3. We last used this car nearly two years ago.
-> we haven't....USED THIS CAR FOR NEARLY TWO YEARS.....
4. The last time i saw her brother was in 2009
-> i haven't....SEEN HER BROTHER SINCE 2009.....
5. It's many years since he last wore a striped T- shirt
-> he hasn't...WORN A STRIPED T-SHIRT FOR MANY YEARS.......
6. When did you beginto collect stamp ?
-> how long...HAVE YOU COLLECTED STAMP ?...
7. When did Mr. Long buy that house?
-> how long HAS MR LONG BOUGHT THAT HOUSE ?.....
8. She hasn't written to her mother for three years
> she last....WROTE TO HER MOTHER WAS THREE YEARS AGO....
9. They haven't gone out together since 2009
-> the last time....THEY WENT OUT TOGETHER WAS IN 2009...
10. We haven't met our grandparents for a long time
-> it is.....A LONG TIME WE LAST MET EACH OTHER...
11. She has worked as a secretary since 2005
-> she began.....TO WORK AS A SECRECTARY IN 2005....
12. I have never sing this song before
-> this is.....THE FIRST TIME I HAVE SING THIS SONG.
13. Nothing interesting has happened to me for 2 weeks
-> the last time....SOMETHINGS INTERESTING HAPPENED TO ME WAS 2WEEKS AGO...
14. How long is it since you last talked to her ?
-> when was....THE LAST TIME YOU TALKED TO HER ?...

Quá khứ & hiện tại joanf thành
1.Mary has learned English for six year.
-->It is...six years since mary learned engish
2.The last time we watched TV was two hours ago.
-->It has been two hours since we watched tv
3.They have taught Geography at this school for a long time.
-->It is...a long time since they taught Geography at this school
4.I stopped writing to my old friemd four weeks ago.
-->It is...4 weeks since i stopped writing to my old friend
5.we last went to the beach ten years ago.
-->It has been....10 years since we went to the beach
6.I haven't taken any pho tograph for two years.
-->It is....2 years since i took photograph
7.He has been unemployed for three days.
-->It's.....3 days since he was unemployed
8.John has not had his hair cut for over six months.
-->It has been....over 6 moths since john had his hair cut
9.She started working here in 2012.
-->It is....7 years since she worked here
10.I haven't had a holiday for five months.
--> It is...5 months since i had a holiday

1.The last time she saw him was him 3 months ago
=> It's 3 months since she last saw him
2.I last saw them 5 years ago
=>I have not seen them for 5 years
=>It's 5 years since I last saw them
3.They started working there 10 years ago
=>They have worked there for 10 years
4.She last read this letter 3 months ago
=>She has read this letter for 3 months
=>It's 3 months since she last read this letter
5.It's a long time since I last skipped rope
=>I have not skipped rope for a long time
6.He hasn't eaten dog meat before
=>This is the first time he has eaten gog meat
7.This is the most luxuruous hotel my family has ever lived
=>My family has never lived in such a luxurios hotel like this before
8.It is the most expensive car he has ever bought
=>He has never bought such an expensive car like that before
9.That is the worst restaurant we have ever eaten in
=>We have not eaten in such a bad restaurant like that before

HTHT-QKD
1. This is a 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 met her
-> I haven't had my hair cut since i met her
5. The last time she called me was 5 months ago
-> she hasn't called me for 5 months
6. It is a long time since we last met
-> we haven't met for a long time
7. This is the first time I had such a delicious meal
-> I haven't had such a delicious meal be4
8. I haven't seen him for 8 days
-> The last time i saw him was 8 days ago
9. I haven't taken a bath since Monday
-> It is Monday since i last took a bath

Rewrite each sentence without changing its meaning.
1. They haven’t tried shrimp sauce before.
This .......is the first time they have tried shrimp sauce..............
2. It’s four years since they last talked to each other.
The last ........time they last talked to each other was four years ago......
3. We haven’t contacted him since we left high school.
We last .........contacted him was when we left high school............
4. This is the first time we have been to England.
We have ........never been to England before...................
5. Did you last meet him when you lived in Hanoi?
Haven’t .......you met him since you lived in Hanoi.............
6. They last visited their hometown a long time ago.
It’s .......a long time since they last visited their hometown......
7. He started to play football when he was only three.
He has ....played football since he was only three...........
8. The last time I enjoyed myself so much was a year ago.
I haven’t ....enjoyed myself for a year..............
9. He last performed on the stage when there was a big event in his hometown.
The last ....time he performed on the stage was on a big event in his hometown..............
10. Those cats haven’t been fed for three hours.
The last .....time those cats were fed was three hours ago..

Change into passive
1. They will hold the meeting before May Day.
------->The meeting ......will be held before May Day......
2. Somebody has taken some of my books away
--------> Some of my books have been taken by somebody............
3. They have to repair the engine of the car.
-------> The engine of the car ....HAS TO BE REPAIRED.......
4. They may use this room for the classroom.
---------->This room .......MAY BE USED FOR THE CLASSROOM........
5. The teacher is going to tell a story.
------------A story IS GOING TO BE TOLD BY THE TEACHER...........
6. John used to visit his parents at weekends.
----------> His parents ....USED TO BE VISITED BY JOHN AT WEEKENDS.........
7. They use milk for making butter and cheese.
-------->Milk clothing. ..IS USED FOR MAKING BUTTER AND CHEESE..........
8. They have provided the victims with food and clothing
-----> The victims ......HAVE BEEN PROVIDED WITH FOOD AND CLOTHING......
9 . People speak English in most every corner of the world .
------>. English ...IS SPOKEN IN MOST EVERY CORNER OF THE WORLD.........
10. The students are writing the lesons now .
------> The lesson IS BEING WRITTEN BY THE STUDENTS NOW.
11. Her teacher taught her how to apply this theory
------>She .WAS TAUGHT HOW TO APPLY THIS THEORY BY HER TEACHER.............
12. Someone will tell him that news.
------> he ......WILL BE TOLD THAT NEWS BY SOMEONE....
EXERCISE: Complete the sentences with "for" or "since":
1. We haven't heard from them ___FOR______ ages
2. They waited for you _____FOR____ two days
3. They haven't met him ____SINCE_____ he left the room
4. We have bought the new car ___SINCE_____ 1999
5. Haven't you seen him _____SINCE_______ Christmas?
6. It was not rained ____SINCE______ May
7. I haven't written to him _______FOR_ five months.
8. She has spoken to them _____SINCE__ this morning
9. We have listened to music __SINCE______ 8a.m
10. The house been built _____SINCE_____ last year
EXERCISE: Use simple past or present perfect to complete the following sentences:
1. Her English ( improve) ______HAS IMPROVED_____ recently
2. How many pages _____HAVE YOU READ____ you (read) _________ so far?
3. We (finish)____FINISHED____ our homework two hour ago
4. __________ you(be)__________ to Rome? HAVE YOU BEEN
5. I (see)____________ him several times on TV HAVE SEEN
6. What _______you (do)__________ last night? DID YOU DO
7. This is the first time I (visit)______ the city HAVE VISITED
8. They (buy)__________ the garden some days ago. BOUGHT
9. I (learn)________ English since I (be)__________ 11 years old HAVE LEARNT/ WAS
10. Be careful! I (just clean)________ the floor HAVE JUST CLEANED
11. The meal (already be)___HAS ALREADY BEEN____ ready
12. I ( never read)________ an interesting story like this before HAVE NEVER READ
EXERCISE : Rewrite the following sentences with the words given
l. Minh last wrote to his pen al five months ago
-> Minh hasn't WRITTEN TO HIS PENPAL FOR 5 MONTHS.
2. The last time we visited Kuala Lumpur was 3 years ago
-> I haven't VISITED KUALA LUMPUR FOR 3 YEARS.
3. When did you study English?
-> How long HAVE YOU STUDIED ENGLISH ?
4. They began building this house 2 months ago
->They have BUILT THIS HOUSE FOR 2 MONTHS.
5. My father started to work in this factory last week
-> My father has WORKED IN THIS FACTORY SINCE LAST WEEK.
6. How long has he worked in the garden?
->When DID HE BEGIN TO WORK IN THE GARDEN ?
7. How long ago did you learn music?
-> How long have YOU LEARNT MUSIC ?
8. He started living in Ho Chi Minh city when he was 8
-> He has LIVED IN HCM CITY SINCE HE WAS 8.
9. He learnt English when he was 18
-> He has..LEARNT ENGLISH SINCE HE WAS 18.
10. They have worked in that factory for five years
-> They began WORKING IN THAT FACTORY 5 YEARS AGO.
ll. My father stopped smoking two years ago
-> My father hasn't SMOKED FOR 2 YEARS.
12. We have learnt English for four years.
-> We started. LEARNING ENGLISH 4 YEARS AGO.
13 My father started to give up smoking last year
-> My father has GIVEN UP SMOKING SINCE LAST YEAR.
14. They have worked in that factory since 2001
-> They started. WORKING IN THAT FACTORY IN 2001.
15. Lan hasn't written to Maryam for a month.
-> Lan didn't...WRITE TO MARYAM A MONTH AGO...
16. He has lived in Ha Noi since he was 12.
-> He started. LIVING IN HA NOI WHEN HE WAS 12.
17. I haven't met her for a long time.
-> I didn't. MEET HER A LONG TIME AGO.
18. How long have you leamt French ?
-> How long ago DID YOU LEARN FRENCH ?
19. How long have you bought this car -> When did YOU BUY THIS CAR ?
20. When did you start to listen to classical music ?
->How long HAVE YOU LISTENED TO CLASSICAL MUSIC ?
21. I saw her 10 years ago.
-> I haven't SEEN HER FOR 10 YEARS.
EXERCISE : Rewrite the following sentences with the words given
l. Minh last wrote to his pen al five months ago
-> Minh hasn't written to his pen pal for five months
2. The last time we visited Kuala Lumpur was 3 years ago
-> I haven't visited Kuala Lumpur for 3 years
3. When did you study English?
-> How long have you studied English
4. They began building this house 2 months ago
->They have built this house for 2 months
5. My father started to work in this factory last week
-> My father has worked in this factory since last week
6. How long has he worked in the garden?
->When did he work in the garden?
7. How long ago did you learn music?
-> How long have you learnt music ?
8. He started living in Ho Chi Minh city when he was 8
-> He has lived in Ho Chi Minh City since he was 8
9. He learnt English when he was 18
-> He has...learnt English since he was 18
10. They have worked in that factory for five years
-> They began to smoke in that factory five years ago
ll. My father stopped smoking two years ago
-> My father hasn't smoked for two years
12. We have learnt English for four years.
-> We started. to learn English four years ago
13 My father started to give up smoking last year
-> My father has given up smoking since last year
14. They have worked in that factory since 2001
-> They started. to work in that factory in 2001
15. Lan hasn't written to Maryam for a month.
-> Lan didn't...write to Maryam a month ago..
16. He has lived in Ha Noi since he was 12.
-> He started.to live in Ha Noi when he was 12
17. I haven't met her for a long time.
-> I didn't. meet her a long time ago
18. How long have you leamt French ?
-> How long ago did you learn French?
19. How long have you bought this car -> When did you buy this car?
20. When did you start to listen to classical music ?
->How long have you listened to classical music?
21. I saw her 10 years ago.
-> I haven't seen her for 10 years
1. It has been years since we last traveled abroad.
We haven’t............................... traveled abroad for years.................................................................................
2. I haven’t watched TV for a week.
The last....................................... time I watched TV is one week ago...............................................................................
3. We owned this house two years ago.
We have................................. lived in this house for 2 years....................................................................................
4. We have never met him before.
It’s the......................... first time we have ever met him..............................................................................................
5. It started to rain at 2 p.m.
It has........................... rained since 2p.m...............................................................................................
6. When did you start working here?
How long................................... have you worked here?...............................................................................
7. Dave has written a composition for two hours.
Dave started......................... to write a composition 2 hours ago......................................................................................
8. How long have you been learning English?
When........................... did you start to learn english?.............................................................................................
9. Keith started driving a car five years ago.
Keith has................................ driven a car for 5 years....................................................................................
10. This is the first time I have ever eaten this kind of food.
I have............................ never eaten this kind of food.............................................................................................
11. The last time I played chess was in 2000.
I have not............................ played chess since 2000.......................................................................................
12. I have never met such a famous person before.
It is....................................... the first time i have ever met such a famous person.....................................................................................
13. My friend’s mother has been teaching English in this school for a long time.
My friend’s mother started.................................. teaching english in this school a long time ago.......................................................
14. She has never been so angry before.
This is............................... the first time she has been so angry.........................................................................................
15. The last time it snowed here was six years ago.
It hasn’t................................... snowed here for six years..................................................................................
16. He hasn’t visited his parents for a year.
It is................................. year since he last visited his parents...........................................................................................
17. John and Mary moved to Edinburgh twenty years ago.
It is now.......................... twenty years since John and Mary moved to Edinburgh...........................................................................................
18. John began playing the piano ten years ago.
John has................................. played the piano for ten years....................................................................................
19. I have never read such a romantic story.
This is............................................ the most romantic story I have ever read...........................................................................
20. They last visited me five years ago.
They haven’t................................ visited me for five years..............................................................................
21. He hasn’t been back to his homework for 20 years now.
It is................. 20 years since he last go back to his homework...........................................................................................................
22. It’s nearly twenty years since my father saw his brother.
My father............................... hasn't seen his brother for nearly twenty years................................................................................... `
23. When did you last ride a bike?
How long............................... have you not ridden a bike?...................................................................................
24. We haven’t been to London since 1998.
The last............................... time we went to London was in 1998......................................................................................
25. My wait in the queue has lasted forty minutes so far.
I have been waiting in the queue for forty minutes.
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