The difference in ages of father and Nam is :

52 - 12 = 40 ( ages )

Since the age difference does not change over time, when the age of the father is 5 times the age of Nam, the age difference of the father and Nam is still 40 years old.

We have a diagram when the father's age is 5 times the age of Nam

Nam's age    : |----------|

Father's age : |----------|----------|----------|----------|----------|

age difference is 40

Nam's age when his father's age is 5 times his age is:
 

40 : ( 5 - 1 ) x 1 = 10 ( ages)

Father's age is 5 times more than Nam's age in previous years is :

12 - 10 = 2 ( years ago )

                     answer:......

Dịch :

Hiệu số tuổi của 2 bố con hiện nay là :

52 - 12 = 40 ( tuổi )

Vì hiệu số tuổi không thay đổi theo thời gian nên khi tuổi bố gấp tuổi Nam 5 lần thì hiệu số tuổi của 2 bố con vẫn là 40 tuổi

Ta có sơ đồ khi tuổi bố gấp 5 lần tuổi Nam :

Tuổi Nam : |----------|

Tuổi bố     : |----------|-----------|-----------|-----------|----------|

Hiệu số tuổi là 40 tuổi

Tuổi Nam khi đó là :

40 : ( 5 - 1 ) x 1 = 10 ( tuổi )

Tuổi bố gấp 5 lần tuổi Nam cách đây số năm là :

12 - 10 = 2 ( năm trước )

                 Đáp số:.....

In 8 years, his father will be 5 years older than him .

hok tốt ~

Đề bài là ???

She sold a new house 5 years ago

-> A new house was sold 5 years ago.

my father drank a cup of coffee 2 years ago

-> A cup of coffee was drunk by my father.

I didn't believe him

-> He wasn't believed by me.

She had a new car in 2019

-> A new car was had by her in 2019.

We did our homework

-> Our homework was done by us.

I,viết lại câu

1,He had learned carefully before he tôk the exam

=>after he ha learned carefully , he took the exam.

2, My sister spends 3 years learning french

=>takes

IT TAKES MY SISTER 3 YEARS TO LEARN FRENCH

3, I started driving my car 6 years ago(for)

I HAVE DRIVEN MY CAR FOR 6 YEARS

4,My Father bought this house 3 week ago (using present perfect)

MY FATHER HAS LIVED IN THIS HOUSE FOR 3 WEEKS

5, The weather is too cold for us to go out (enough )

THE WEATHER ISN'T WARM ENOUGH FOR US TO GO OUT

6, He fixed his car and then he washed his car (after)

AFTER HE HAD FIXED HIS CAR , HE WASHED IT

I,viết lại câu

1,He had learned carefully before he tôk the exam

=>AFTER HE HAD LEARNED CAREFULLY,HE TOK THE EXAM

2, My sister spends 3 years learning french

=>IT TAKES MY SISTER 3 YERAS TO LEARN FRENCH

3, I started driving my car 6 years ago(for)

=>I HAVE STARTED DRIVE MY CAR FOR 6 YEARS

4,My Father bought this house 3 week ago (using present perfect)

=>MY FATHER HAS BOUGHT THIS HOUSE FOR 3 WEEKS

5, The weather is too cold for us to go out (enough )

=>THE WEATHER IS COLD ENOUGH FOR US TO GO OUT

6, He fixed his car and then he washed his car (after)

=>AFTER HE HAS FIXED THE CAR, HE WASHED THIS CAR

Chiếc xe của bố tôi thì mới nhưng nó chạy không nhanh.

Chiec xe cua bo toi ms nhug no chay ko nhanh

Nói nhiều làm gì, Xe của bọ mày mới nhưng chạy đéo nhanh

his father had smoked cigarettes when he had been young

was bought two years ago by him

I had a computer, I would finish my work fast

1.Tom said his father had smoked cigarettes when he had been young.

2.This car was bought two years ago.

3.If I had a computer, I would finish my work fast.

1)The Garden is behind linh's house

{Linh's house is in front of the garden. }

2)My class has four windows and four calling fans

{There are 4 windows and 4 calling fans in my class.}

3)My father's car is new

{My father has a new car.

4) What's your favorite subject

{What subject do you like best?}

5)I don't have a television in my room

{There isn't any television in my room.

6) No one in my class is more in telligent than Linh

{Linh is the most intelligent student in my class.}

7)My room is not as beautiful than my sister 's room

{My sister's room is more beautiful than mine.

Mark letter A,B,C or D on your answer sheet to indicate the santence that is closest meaning to the original sentence in each of the following question.

1. This is the first time I visited Tokyo

A. I have never gone to Tokyo before

B. I haven't been to Tokyo for a long time

C. I first came to visit Tokyo long time ago

D. I have never been to Tokyo before

2. It's a month since my father last smoked cigarettes.

A. My father hasn't smoked cigarettes

B. It's a month ago that my father smoked cigarettes

C. It's a month that my father hasn't smoked cigarettes

D. It's a cigarette that my father smoked a month ago

3. Mr. Brown has had this car for five years

A. mr. Brown started to buy this car five years ago

B. It has been five yaers when Mr. Brown bought this car

C. Mr. Brown bought this car five years ago

D. It is five yeas ago sinxe Mr. Brown bought this car

With

Mk nghĩ vậy

Đúng ko

K mk nhé

từ cần điền là "by" nha bạn 

I go to school by my father's car

By

mk nhoa

mơn nhìu

1.was repaired

2.wasn't written

3.Was the phone answered

4.was made

5.was tennis invented

6.wasn't damaged

7.was pulled 

8.was this bridge built

My car was repaired last week.
This song was not written by John Lennon.
Did the phone answer by a young girl?
The film was made ten years ago.
When was tennis invented?
The car was not damaged in the accident. 
The original building was pulled down in 1965.
When was this bridge built?

1.was repaired

2.wasn't written

3.Was the phone answered

4.was made

5.was tennis invented

6.wasn't damaged

7.was pulled 

8.was this bridge built