1. I have never seen such a beautiful girl before.

- She is the most beautiful girl I have seen

2. This is the first time I have seen him.

- I haven’t seen him before

3. When did you have it?

- How long have you had it

4. They can avoid some diseases by eating a lot of fish.

- Eating a lot of fish can avoid some diseases

5. I haven’t eaten this kind of food before.

- This is the first time I have  eaten this kind of food 

6. My father and I share the same hobby.

- My father has the same hobby as me 

7. I don't have enough meat.

- I don’t need to buy any more meat

8. I wanted to eat sushi for dinner. I went to a Japanese restaurant.

- I wanted to eat sushi for dinner so I went to a Japanese restaurant.

This is the first time I have been to Japan.

I have never been to Japan before

2. This is the first time I have seen such a beautiful girl.

I have never seen such a beautiful girl before

 3. I have never visited HaLong Bay before.

This is the first tim I have visited HaLong Bay

4. I haven’t cheated in exam before

This is the first time I have cheated in exam 

5. I have never seen such a good song before.

This is the first time I have seen such a good song

6. I started getting married 10 years ago.

I have been married for 10 years

7. I began learning French 3 years ago.

I have learnt French for 3 years

8. She began living in Danang when she was a child.

She has lived in Danang since she was a child.

9. I started writing blog 2 months ago 1

I have written blog for 2 months

0.I have learnt French for 3 years.

I started learning French 3 years ago

11.I started writing blog 2 months ago

I have written blog for 2 months

12.I have learnt English for 4 years.

I started learning French 4 years ago

13.She started driving 1 month ago. 1

She has driven for 1 month

4.We began eating when it started to rain.

We have eaten since it started to rain.

15.Samuel started keeping a diary in 1997

Samuel has kept a diary sicne 1997

16.We started learning Chinese five years ago.

We have learnt Chinese for 5 years

17.I began living in Ho Chi Minh City when I was 8.

I have lived in Ho Chi Minh City since I was 8.

18.She has taught the children in this remote village for five months

She started teaching the children in this remote village 5 months ago

19.He has written to me for 3 months.

He started writing to me 3 months ago

20.Robert and Catherine have been married for ten years.

Robert and Catherine got married 10 years ago

1 I has never seen such a beautiful building before.

->It's 

56. I have never read such a romantic story before. 

->This is 

57. They have never had such a cold winter before.

-> It is

51. I have never seen a dirtier-looking dog before.

->This is

54. John has not had his hair cut for over six months.

->The last time

58. I haven't played football since 2000.

->l last

59. I haven't been to HCM city for 2 years.

-> It’s

65. I have learned English for four years.

->We started

67. The editor hasn't written to Mai for a month.

->It’s

->the last time

1. It's the most beautiful building I have ever seen.
56. This is the most romantic story I have ever read.
57. It is the coldest winter they have ever had.
51. This is the dirtiest-looking dog I have ever seen.
54. The last time John had his hair cut was over six months ago.
58. I last played football in 2000.
59. It’s been two years since I last went to HCM city.
65. We started learning English four years ago.
67. It’s been a month since the editor wrote to Mai the last time.

1. I have not gone to the beach for 2 months

The last time…I went to the beach was 2 months ago..

I last went to the beach 2 months ago..

It is .2 months since I last went to the beach.

2.The little girl has not seen such a big elephant before.

It ia the first time the girl has seen…

3. They have played tennis for 3 years.

They started…playing tennis 3 years ago.

4. I started working here in 1998.

I have worked here since 1998……………………………………………………….

5. During my stay in Paris, I met my wife.

While …

6. He doesn’t grow tulips any more

He stops growing tulips….

7. My teacher lives in Qn city. Her daughter is my classmate. ( relatuve clause)

My teacher 's daughter is my classmate…

When did you go here?

I have never seen such a beautiful girl before.

The last time I went to school was 4 months ago because of covid-19

This is the first time I have visited Halong Bay.

It is years since I last cheated in exam

I started marrying 10 years ago.

When did she start living in Danang?

He last smoked 2 years ago.

I began learning French 3 years ago.

I last met her 5 days ago.

1 When did you move here

2 I have never seen such a beautiful girl

3 I last went to school 4 months ago because of covid 19

4 This is the first time I have visited Ha Long Bay

5 I last cheated in exam years ago

6 I was married 10 years ago

7 When did she lived in Da  Nang?

8 He last smoked 2 years ago

9 I started learning English 3 years ago

10 I last met her 5 days ago

They might study in America next year.

—> Perhaps they will study in America next year.

chuyển đổi thì hiện tại hoàn thành sang quá khứ đơn

1 How long have you been here?

->  When did you go here?

2 this is the first time I have seen such a beautiful girl

->  I have never seen such a beautiful girl before.

3 I haven't gone to school for 4 months because of covid-19

->  The last time I went to school was 4 months ago because of covid-19

4 I have never visited Halong Bay before 

->  This is the first time I have visited Halong Bay.

5 I haven't cheated in exam for years

->  It is years since I last cheated in exam

6 I have married for 10 years

-> I started marrying 10 years ago.

7 How long have she lived in Danang

->  When did she start living in Danang?

8 He hasn't smoked for 2 years

-> He last smoked 2 years ago.

9 I have learnt french for 3 years

->  I began learning French 3 years ago.

10 I haven't met her for 5 days

-> I last met her 5 days ago.

Put yet,already,ever,never,since,for into in the gap

1.They have ..............already..............sent the money.I got it this morning.

2.We have.......ever......been to Dalat before.We want to go there next year.

3.He has worked for the company................for................several years.

4.Have you .............ever.............seen the Kangaroo?-Yes,I have.

5.They have lived next door to my house........since............I was young.

6.The plane has.............already............taken off.It's now up in the sky.

7.I've ..........ever...........met a prettier girl than she is before.

8.That's the book.I've ...........ever.........read.

9.We have written to each other.......for.......a long time.

1.They have alreadysent the money.I got it this morning.

2.We have ever been to Dalat before.We want to go there next year.

3.He has worked for the company for several years.

4.Have you ever seen the Kangaroo?-Yes,I have.

5.They have lived next door to my house since I was young.

6.The plane has already taken off.It's now up in the sky.

7.I've ever met a prettier girl than she is before.

8.That's the book.I've ever read.

9.We have written to each other for a long time.