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.

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

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.

A

1. This is the first time I have seen this type of fish.

2. We have never looked at the ocean before.

3. This is the first time Susie has gone to the cinema.

This is the first time I have seen this type of fish

We have never looked at the ocean before

This is the first time Susie has gone to the cinema

1 C

2 B

3 C

4 A

5 D

1.The last time I played football was in 1970.
=> I haven't played football since 1970.
2. The last time it rained was a fortnight ago.
=> It hasn't rained for four night.
3. The last time Lucy wore that dress was at Barbara’s wedding.
=> Lucy hasn't worn that dress since Barbara's wedding.
4. The last time my father was to Vung Tau was 2 years ago.
=> My father hasn't been to Vung Tau for 2 years.
5.The last time Betty rode to work was a fortnight ago.
=> Betty hasn't ridden to work for fornight.
6.He hasn’t played tennis since 1990.
=> The last time he played tennes was in 1990.
7.I haven’t met her for 2 months.
=> The last time I met her was 2 months ago.

B –

S + V QKĐ – start / begin + ………………… + ago

↔ S + V HTHT / HTHTTD + ………………… + since / for (bỏ start / begin)


Rewrite the following sentences, using the words given.
Ex: - He started workingfor this factory a year ago.
(He has been working for this factory since last year / for a year.
1.Tom began playing the piano 4 years ago.
=> Tom has been playing the piano for 4 years.
2. I started cooking for the party 4 hours ago.
=> I have been cooking for the party for 4 hours.
3. She started working as a secretary 2 years ago.
=> She has been working as a secretary for 2 years.
4. My father is reading a newspaper. He started 2 hours ago.
=> My father has been reading a newspaper for 2 hours.
5.My sister began to study English a year ago.
=> My sister has been studying English for 1 year.
6.Scientists began to fight against AIDS in 1980.
=> Scientists have been fighting against AIDS since 1980.
7.The Browns have been living in London for 20 years.
=> The Browns began to living in London 20 years ago.
8. John has worked for this electronics firm since 1999.
=> John started working for this electronics firm in 1999.
9. Women have been fighting for their rights since the middle of the 20thcentury.
=> Women began to fight for their rights in the middle of the 20th century.
10. Jack and Jill have learned to drive for 2 weeks.
=> Jack and Jill started learning to drive 2 weeks ago.
11. How long have you studied English?
=> When did you started studying English?
12. When did you begin to do research on lung cancer?
=> How long have you begun to do research on lung cancer?
C-

S + V HTHT – PĐ + ………… +before
↔ It / This is the first time + S + V HTHT – KĐ +………… (bỏ before)


Rewrite the following sentences, using the words given:
Ex : I haven’t seen that film before.
(It / This is the first time I have seen that film.
1.My father hasn’t driven a car before.
=> This is the first time my father has driven a car.
2.I’ve never met such a famous singer before.
=> It’s the first time I have met such a famous singer.
3.She has never been to the ballet before.
=> It’s the first time she has been to the ballet.
4.She hasn’t drunk Coca Cola before.
=> This is the first time she has drunk Coca Cola.
5.I have never read this book before.
=> It’s the first time I have read this book.
6.I have never met such an intelligent student before.
=> It’s the first time I have met such an intelligent student.
7.This is the first time my grandfather has been to