1. No one has challenged his authority before.
--> This is the first time.......someone has challenged his authority 
2. My mother was the most warm-hearted person I 've never known.
--> I have ....never known a more warm-hearted person than my mother
3. The police started looking for him two months ago.
--> For two months now the......police have been looking for him
4. I have never seen such a beautiful building.
--> It's the most......beautiful building I have seen
5. I have never read such a romantic story.
--> This is the most.....romantic story I have read
6. They have never had such a cold winter.
--> It was the......coldest winter I have had
7. You will never meet anyone more dangerous than Mr.Jones .
--> Mr.Jones is the most......dangerous person you have met
8. Man has never had such efficient servants as computer.
--> Computer is the most.....effecient servant man has.
9. How long have you learnt Spanish?
--> How long ago ........did you start learning Spanish

1, I regret selling my car.

=> I wish I hadn't sold my car.

2, My mother was the most warm-hearted person I have ever known.

=> I have never known a more warm-hearted person than my mother.

1, I regret selling my car

I wish I hadn't sold my car

=> sau regret là ving nên chuyển thành wish bỏ regret ving  thành had(not) + pp

2, my mother was the most warm-hearted person I have ever known

I have never known a more warm-hearted person than my mother

=> cấu thúc s + v + more + adv + than + s2

Jane’s grandma hasn’t planted trees in the garden for 5 months.

 Jane’s grandma stopped ………planting trees in the garden 5 months ago……………………………………………………………...

I have never met a more warm-hearted person than my mother is.

 My mother is …………the most-hearted person I have met………………………………………………………………………

I have never seen such a bad film as that one in the cinema.

 That is the ………worst film in the cinema I have seen…………………………………………………………………………..

We haven’t seen Mary since we left the university.

 We last ……………saw mary when we left the university.  ………………………………………………………………………….

The last time I went swimming was when I was in Spain.

 I haven’t …………gone swimming since I was in Spain. …………………………………………………………………………..

37 me two hours to make a birthday cake for my beloved daughter.

38 never known a more warm-hearted person than my mother.

39 he joins an English-speaking club, his speaking skill will be improved soon.

40 be read to broaden the mind by students.

cảm ơn nhìu nèe

Noone has challenged his authority before

=> This is the first time his authority has been challenged.

She left university 2 years ago

=> It is 2 years since she left university.

My mother was the most warm-hearted person I’ve ever known

=> I have never known a more warm-hearted person than my mother.

Chúc bạn học tốt!

1. This is the first time they have heard such a thing

2. This is the first time one has challenged his authority.

3. It is 2 years since she left university 

They have never heard such a thing before. => This is the firt time they have heard such a thing 

Noone has challeged his authority before. => This is the first time one has challenged his authority

She left university 2 years ago =>It is  2 years since she left university

1 I've never known a more warm-hearted person than my mother

2 The older I get, the less I want to travel

3 geogre was impossible to be found everywhere

4 Getting into work this morning was a bit difficult

Cái này thì e phải xem cấu trúc viết câu chứ k có gì để giải thích nha

1. I have never known a more warm - hearted person than my mother

2. The older I get, the less I want to travel

3. George was impossible to be found everywhere

4. getting into work this morning was a bit difficult 

1.She left university 2 years ago
⇨ It is 2 years since she left university
2. My mother was the most warm-hearted person I've ever known.
⇨ I have never known a more warm-hearted person than his mother
3. I haven't been able to see them for over a year.
⇨ It is over a year since I was last able to see them ( I last saw them )
4. It stared to rain at 2 o'clock.
⇨ It has been raining since 2 o'clock
5. I have never been to the ballet before.
⇨ It is the first time I have ever been to the ballet.
6. John and Mary moved to Edinburgh twenty years ago.
⇨ It is twenty years since John nd Mary moved to Ediburrgh
7. The police started looking for him two months ago.
⇨ For two months now the police has been looking for him/ has looked for him.
8. I have never seen a dirtier-looking dog.
⇨ This is the first time I have ever seen such a dirtier- looking dog
9. Mary rang hours and hours ago.
⇨ It it hours since Mary sang
10. It is ages since Alan visited his parents.
⇨ Alan hasn't visited his parents for ages

Nguyễn Ngọc ko có chi nha

Câu 10 nên viết lại là How long has your father HAD that car? sẽ đúng hơn. Vì hiện tại hoàn thành sẽ diễn tả hành động kéo dài từ quá khứ đến hiện tại, còn hành động "buy" (mua) sẽ chỉ xảy ra trong một mốc thời gian thôi, hành động have (sở hữu) mới là hành động kéo dài, dùng đc ở thì hiện tại hoàn thành

QUÁ KHỨ⇔ HIỆN TẠI HOÀN THÀNH :

1. She hasn't gone out with him for 5 months .

❏ The last time ...she went out with him was 5 months ago............................................

2. We haven't seen such a cruel mother before .

❏ This is the first ..time we have seen such a cruel mother...........................................

3. It's two years since we last saw Mr. Jones

❏ We haven't ....seen Mr.Jones for 2 years.................................................

4. This is the first time I have visited the USA .

❏ I haven't ......visited the USA before....................................................

5. I have learnt English for ten years now .

❏ I began learning English 10 years ago

6.She moved London 20 years ago

❏ She has moved London for 20 years................................................................

7.The Pikes haven't visited Paris for 2 years .

❏ The last time the Pikes visited Paris was 2 years ago...........................................................

8. I stopped writing to him a week ago .

❏ I haven't written to him for a week....................................................................

9. Mary has learnt French for 6 years .

❏ It's 6 years since Mary started learning ENglish.............................................................................

10. When did your father buy that car ?

❏ How long has your father bought that car?.....................................................................

11.I have never met a more warm-hearted person than my mother is .

❏ My mother is the most warm -hearted person I have ever met

12.I have never seen such a bad film as that one in the cinema .

❏ That is the worst film I have ever seen.

13. That's the strangest film I've ever seen .

-> I've never seen such a strange film as that one...........................................................................

14. I've never known such a beautiful girl before .

-> This is the first time I have known such a beautiful girl

15. Mrs. Lien is the most warm-hearted person I've ever met.

-> I've never met a more warm-hearted person than .Mrs.Lien.

1. they have never heard such a thing befora

=> thí í the first time......................they have heard such a thing.....................

2. she left university 2 years ago

=> it is......................2 years since she left university..................

3 . my mother was the most warm-hearted person i've ever knowwn

=> i have..............never known a more warm-hearted person than my mother...............

4 . i haven't been able to see them for over a year

=> it is.........................over a year since I last saw them.............

1. bỏ before ⇒ the first time không dùng before