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viết lại câu sao cho không đổi nghĩa
1)this is the first time we've done this kind of work:
we have never done this kind of work before
2)I last saw him when I was a student:
I haven't seen him since I was a student
3)how long have Cathrine and henry been angaged?:
When were Cathrine and henry angaged?
4)It is ages since Alan visited his parents:
Alan hasn't visited his parents for ages
5)I haven't laughed so much for ages :
It's ages since I last laughed so much
6)John has not had his hair cut for over 6 months:
It's over 6 months since John last had his hair cut
7)I haven't spoken to her for two weeks:
the last time I spoke to her was two weeks ago
8)he fell ill on friday morning:
he has fallen ill since friday morning
9)the last time I saw her was at Peter's party
I last saw her at Peter's party
10)I haven't played tennis since 1990:
the last time I played tennis in 1990
11)I haven't been to Bristol for three years:
I last went to Bristol three years ago
12)I've never met such a famous person before
This is the first time I have met such a famous person
13)I haven't seen him since I was a student:
I last saw him when I was a student
14)I last heard from him in July:
I haven't heard from him since July
15)the last time she wrote to us was last year:
she hasn't written to us since last year
16)It's the first time she has seen that boy:
She's never seen that boy before

1.there's no point in asking lynda to help as she's really busy WASTE
=> It's a waste of time asking lynda to help as she's really busy
2. I'm sure it was Ana I saw in town as I recognised her coat MUST
=> It must have been Ana I saw in town as I recognised her coat
3.We demanded to see the hotel manager to make our complaint SEEING
=> We insisted on seeing the hotel manager to make our complaint.
1.there's no point in asking lynda to help as she's really busy WASTE
It's a waste of time asking Lynda to help as she's really busy.
2. I'm sure it was Ana I saw in town as I recognised her coat MUST
It must have been Ana I saw in town as I recognised her coat.
3.We demanded to see the hotel manager to make our complaint SEEING
We insisted on seeing the hotel manager to make our complaint.

1.I haven't seen him since 1995.
2.The fog prevented us from driving.
3.When did they buy the house?
1. The last time I saw him was in 1995.
- I haven't...seen him since 1995..........
2. We couldn't drive because of the fog.
-The fog prevented.....us from driving........
3.How long is it since they bougt the house?
-When...did they buy the house ?.....

1.When I last saw him, he in London.
A.has lived B. is living C. was living D. has been living
2.We Dorothy since last Saturday.
A.don’t see B. haven’t seen C. didn’t see D. hadn’t seen
3.The train half an hour ago.
A. has been leaving B. left C. has left D. had left
4. Jack the door.
A. has just painted B. paint C. will have painted D. painting
5.My sister for you since yesterday.
A.is looking B. was looking C. has been looking D. looked
6.I Texas State University now.
A.am attending B. attend C. was attending D. attended
7.He has been selling motorbikes .
A.ten years ago B. since ten years C. for ten years ago D. for ten years
8.Christopher Columbus American more than 500 years ago. A.discovered B. has discovered C. had discovered D. had been discovering
9.He fell down when he towards the church.
A.run B. runs C. was running D. had run
10.We there when our father died.
A.still lived B. lived still C. was still lived D. was still living
11.They table tennis when their father comes back home.
A.will play B. will be playing C. play D. would play
12.By Christmas, I for Mr. Smith for six years.
A.will have been working B. will work C. have been working D. will be working
13.I in the room right now.
A.am being B. was being C. have been being D. am
14.I to New York three times this year.
A.have been B. was C. were D. had been
15.I’ll come and see you before I for the States.
A.leave B. will leave C. have left D. shall leave
16.The little girl asked what to her friend.
A.has happened B. happened \ C. had happened D. would have been happened

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

1. The last time I saw Dan was five years ago (ago)
It was five years........SINCE I LAST SAW......Dan
2. I haven't heard from him for ages (since)
It's been...................AGES SINCE I LAST HEARD ........from him
3. The last time I heard from Mary was more than a year ago (more)
It's been..........MORE THAN A YEAR SINCE ..............I last heard from Mary
4. Mary hasn' been Dan for a long time (been)
It's .............BEEN A LONG TIME SINCE ......Mary last saw Dan
5. When was the last time you saw Mary (long)
How...........LONG IS IT SINCE ....................you last saw Mary
6. I'm sure it was more than a year ago (least)
It must.........BE LEAST THAN........a year ago
7. If it doesn't stop snowing we won't get home (unless)
We won't .......GET HOME UNLESS IT STOPS.................snowing
8. Whose name should I write on the cheque (make)
Who should I.........MAKE OUT THE CHEQUE...........to?
It is not worth asking Geogre to help
I haven't seen him since I lived in London
There is no point in asking George to help. (worth)
→It is not worth asking George to help.