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I haven't seen him for months
=> I last saw him months ago
I haven't beem to a concert for over a year
=> The last time I was to a concert was over a year ago
The last time I really enjoyed myself was you birthday party
=> I haven't enjoyed myself since your birthday party
It's nearly 20 years since my father saw his brother
=> My father hasn't seen his brother for nearly 20 years
When did you learn to driver?
=> How long have you learnt to driver?
you have tidied this room for week?
=> I't weeks since you last tidied this room
we starrted looking for a flat 2 months ago and we are still looking?
=> We have looked for a flat for 2 months and we are still looking
This is the first time I've been to a night club?
=> I haven't been to a night club before
They have never hear such a thing before?
=> This is the first time They have heard such a thing
1. We haven't been to a concern for over a year.
- The last time we went to a concern a year ago.
2. Your birthday party was the last time I really enjoyed myself.
- I have enjoyed myself since your birthday was the last time.
3.It's nearly 20 years since my father saw his brother.
-My father has not seen his brother for 20 years.
4. Tom went to Scotland last Friday and is still there.
- Tom has gone to scotland since last friday.
5.When did you last ride a bike?
- How long is it from you riden a bike?
6 . The last time i went swimming was when i was in France.
- I haven'tgone swimming since i was in france.
7. You haven't tided ups this room for weeks.
-It's for a week since you haven't tided ups this room.
8. He was last in touch with me three weeks ago.
It's three week, he hasn't in touch with me .
9. Mr John haven't visited France since 1990.
- Mr John last visited france was in 1990.
10. It last rained three weeks ago.
-It's three weeks since it has rained.
11. I haven't eaten this kind OF food before.
-This is the first i have eaten this kind of food.
B. Mệnh đề"wish."
12 . What a pity you failed your driving test!
- I wish you didn't fail your driving test.
13. It's a pity that you're going awat so soon.
- I wish you weren't going awat so soon.
14.I'm sorry I didn't phone him yesterday.
- I wish i phoned him yesterday.
C . Mệnh đề so sánh.
15.She knows a lọt more about it than I do.
- I don't know a lot more about it than she .
16. Jane is a better cook than Betty.
- Betty can't cook as good as jane
17. Tom is younger than he looks.
- Tom isn't .older than he looks.
18. I didn't spend as much money as my friend didn.
- My friend spent much more money than i did
19. He doesn't know them as well as I do.
- I know as good as he does.
20.It's still cold but it was colder yesterday.
-it's isn't colder than yesterday.
D. Mệnh đềchỉ nguyên nhân và kết quả.
21. The children couldn't go swimming because the seattle was very rough.
- The sea was too rough for the children to go swimming.
22.We didn't have enogh money, so weeks didn't go on holiday.
- If we.had enough money, we would go on holiday.
23. We got lost because we didn't have a map.
- If we had a map, we would get lost.
24. The bridge was so low that the bus couldn't go under it.
- It was so low that the bus couln't go under.
25. It was so late that nothing could be done.
- It was too late for us to do.
26. He couldn't afford to buy a car.
The car couln't be afforded to buy.
27. That restaurant is so dirty that noone wants to eat there.
- It is sucha dirty for us to eat there.
29. Phone now or you will be late.
- you will be late, unless you phone now.
E. Một số mẫu câu khác.
30. I advise you to put your money in a bank.
-You'd to put your money in a bank.
31. Why don't you meet to discuss the price?
- i suggest you should meet to discuss the price.
32. I would prefer you to deliver the package on monday.
-I'd rather. deliver the package on monday.
BÀI TẬP VIẾT LẠI CÂU
A. Mốiquan hệ giữa "ago-since-for" và thì quá khứ đơn và thì hiện tại hoàn thành.
1. We haven't been to a concern for over a year.
- The last time ...we went to a concern a year ago....
2. Your birthday party was the last time I really enjoyed myself.
- I ... have enjoyed myself since your birthday was the last time....
3.It's nearly 20 years since my father saw his brother.
-My father ...hasn't seen his brother for 20 years....
4. Tom went to Scotland last Friday and is still there.
- Tom has...gone to Scoland since last Friday. ...
5.When did you last ride a bike?
- How long is it...from you riden a bike.....
6 . The last time i went swimming was when i was in France.
- I haven't ..gone swimming i was in France.
mình chưa làm hết sory nha
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
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 
Ex1 viết lại câu sao cho nghĩa không thay đổi
1.This last time she came black to her hometown was 4 years ago
=>she hasn`t....come back to her hometown for 4 years.................................................................................
2.He stared working as a bank clerk 3 months ago.
=>he has....worked as a bank clerk for 3 months.....................................................................................
3.It has been 5 years since we first flew to Singapore.
=>we have.......flown to Singapore for 5 years............................................................................
4. I last had my hair cut in November.
=>I haven`t cut my hair since November
5.The last time we called each other was 5 months ago
=>We haven`t called each other 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 fist 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 last saw him was 8 days ago
10.To day is Saturday.I haven`t taken a bath since Wednesday.
=>It is Wednesday since i last took a bath
=>Bn này ở bẩn quá .ĐỌc c10
1.This last time she came black to her hometown was 4 years ago
=>she hasn`t....come back to her hometown for 4 years.................................................................................
2.He stared working as a bank clerk 3 months ago.
=>he has....worked as a bank clerk for 3 months.....................................................................................
3.It has been 5 years since we first flew to Singapore.
=>we have.......flown to Singapore for 5 years............................................................................
4. I last had my hair cut in November.
=>I haven`t cut my hair since November
5.The last time we called each other was 5 months ago
=>We haven`t called each other 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 fist 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 last saw him was 8 days ago
10.To day is Saturday.I haven`t taken a bath since Wednesday.
=>It is Wednesday since i last took a bath
Rewrite the following sentence not to change their meanings:
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..............had my hair cur 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 mea before..................................
9. I haven't seen him for 8 days.
=> The last..................time I saw him 8 years 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 abroat .
=> He hasn't gone abroat 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 when it started to rain .
4, i last had my hair cut when i left her .
=> i haven't cutted 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 dilicious 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 the last time i took a bath was on Monday .
Thank you Nhật Linh Nguyễn nhé !!!!!!!!1
Chúc bạn có một kì nghỉ hè thật vui bên gia đình nhé !!!!!!!!!!!!!!!!!
1.They last talked to each other two months ago. ---> They haven't talked to each other for two months.
2.The last time she saw her elder sister was in 1999. --->She hasn't seen her elder sister since 1999.
3.She hasn't written to me for years.---> It's years since she wrote to me.
4.Robert and Catherine have been married for ten years.--->It's ten years Robert and Catherine married.
5.It's two weeks since they deaned their room.----->They haven't cleaned their room for two weeks.
6.It's over six months since John had his hair cut.---->John has had his hair cut for over six months.
7.how long is it since he wrote to you?--->When was the last time he wrote to you?
8.I last had my hair cut when I left her.--->I haven't had a new hair cut since I left her.
9.The last time she kissed me was 5 months ago.--->She hasn't kissed me for 5 months.
10.It is a long time since we last met.--->We haven't met for a long time.
11.I haven't seen him for 8 days.-->The last time I saw him was 8 days ago.
12.I haven't taken a bath since Monday.-->It is last Monday since I took a bath.
13.It's 2 years since i had a punture.--->I have had a punture for 2 years.
14.It's 2 months since he earned any money.--->He has earned any money for two months.
1 , They haven't talked to each other for two months
2, she hasn't seen her elder sister since 1999
3,It's years since she wrote to me
4,It's ten years Robberts and Cathetine married
5, They haven't cleaned their room for two weeks
Chúc bạn học tốt 
Rewrite
1. They have taught in this school since 2007.
-> They started teaching in this school in 2007.
2. Minh began to collect stamps in 2000.
-> Minh has collected stamps since 2000.
3. I haven`t been to Bristol for three years.
-> The last time I was to Bristol was three years ago.
4. I last Wrote to ......my uncle in July
-> I haven`t written to my uncle since july.
5. She has been to Ha Noi for 5 years.
-> The last time she was to hanoi was 5 years ago
6. The last time it rained was a fortnight ago.
-> It haven't rained for a fortnight
7. I last saw him when was a student.
-> I haven`t seen him since when was a student
8. I haven`t done any gardening for three years.
-> The last time I did gardening was three years ago
9. The last time we went to London was two years ago.
-> We haven`t gone to London for two years .
10. The last time she visited me was a year ago.
-> She hasn`t visited me for a year .
11. It`s a long time since we became close friends.
-> We have become close friend for a long time
12. It is ages since Alan visited his parents.
-> Alan hasn't visited his parents for ages
13. It hasn`t rained for two months.
-> It is two months since it last rained
14. We have know each other for two years.
-> It`s two years since we knew each other
1. They have taught in this school since 2007.
-> They started teaching in this school in 2007.
2. Minh began to collect stamps in 2000.
-> Minh has collected stamps since 2000.
3. I haven`t been to Bristol for three years.
-> The last time I was to Bristol was three years ago.
4. I last Wrote to ......my uncle in July
-> I haven`t written to my uncle since july.
5. She has been to Ha Noi for 5 years.
-> The last time she was to hanoi was 5 years ago
6. The last time it rained was a fortnight ago.
-> It haven't rained for a fortnight
7. I last saw him when was a student.
-> I haven`t seen him since when was a student
8. I haven`t done any gardening for three years.
-> The last time I did gardening was three years ago
9. The last time we went to London was two years ago.
-> We haven`t gone to London for two years .
10. The last time she visited me was a year ago.
-> She hasn`t visited me for a year .
11. It`s a long time since we became close friends.
-> We have become close friend for a long time
12. It is ages since Alan visited his parents.
-> Alan hasn't visited his parents for ages
13. It hasn`t rained for two months.
-> It is two months since it last rained
14. We have know each other for two years.
-> It`s two years since we knew each other
1.I haven't really enjoyed myself since your birthday party.
2. Tom has been to Scotland since last Friday.
3. How long is it since you rode a bike the last time?
4. He hasn't been in touch with me for three weeks.
5.It's three weeks since it rained the last time.
1. I haven't really enjoyed myself since your birthday party.
2. Tom has been in Sotland since last Sunday
3. How long is it from the last time you ride a bike ?
4. He hasn't been in touch with me since three weeks ago
5. It hasn't rained since three weeks ago