1.He couldn't finish the work in the time because of his tiredness.

=))Because he were tired, he couldn't finish the work in the time

2.We didn't go camping because of the bad weather.

=))The bad weather prevented us from going camping

1.He couldn't finish the work in the time because of his tiredness.

=))Because he was tired, he couldn't finish the work.

2.We didn't go camping because of the bad weather.

=))The bad weather prevented us from going camping

1The trip to ho chi minh city was cheaper than we expected

=>The trip to Ho Chi Minh city wasn't as expensive as we expected

2  Lan didn't go to school yesterday because of her sickness

=>Because Lan was sick, she didn't go to school yesterday

3 Our summer vacation lasts two months

=>we have a two-month summer vacation

1:The trip to Ho Chi Minh city wasn't as expensive as we expected

2 Because lan was sick .she didn't go to school

3 we have a two-month smmmer vacation 

bạn nào bit giúp mịnh và ngoc hà voi đang rat can voi

Exercise 5: Rewrite the sentences, using because/because of

1.    He didn’t come because of his sickness.

=>He didn’t come because he was sick

2.    The train was late because the fog was thick.

=>The train was late because of the thick fog

3.    The plane couldn’t take off because of the bad weather.

=>The plane couldn’t take off because the weather was bad

4.    He left the school because his family was poor.

=> He left the school because of his poor family 

5.    We couldn’t study because of the noise.

=>We couldn’t study because it was noisy

6.    I didn’t go swimming because it was cold.

=> I didn’t go swimming because of the cold

7.    These students arrive late because of the bad traffic.

=>These students arrive late because the traffic is bad

8.    Mary can’t sleep because she has drunk a cup of strong coffee.

=>Mary can’t sleep because of drinking a cup of strong coffee.

9.    Because of getting up early, he wasn’t late for the first train.

=>Because he got up early, he wasn’t late for the first train.

10.  He was accepted for the job because he had much experience.

=>He was accepted for the job because of having much experience.

Exercise 6: Rewrite the sentences, using because/because of

1.    Kevin has failed many times, so he disappointed.

=> Because Kevin has failed many times, he disappointed.

2.    I had not eaten for 24 hours. I was very hungry.

=> Because I had not eaten for 24 hours, I was very hungry.

3.    He ate all the fruits. The fruits were ripe.

=> He ate all the fruits because they were ripe.

4.    He hadn’t finished the letter. He didn’t go to sleep.

=> Because he hadn’t finished the letter, he didn’t go to sleep.

5.    He is dismissed. He was late for the work very often.

=>He is dismissed because of being late for the work very often.

6.    He drove too fast. He caused a serious accident.

=> Because of driving too fast, he caused a serious accident.

7.    The streets are narrow, so there are not many people driving cars in this city.

=> Because the streets are narrow, there are not many people driving cars in this city.

8.    The test was so difficult that I couldn’t do it.

=>   Because the test was so difficult, I couldn’t do it.

9.    I don’t know Russian. I have to have my document translated into Russian.

=> Because I don’t know Russian, I have to have my document translated into Russian.

10.  The children had an accident. They went to school late.

=>The children had an accident because of going to school late.

1.Because kevin has failed many times , so he disappointed

2.I was very hungry because i hadn't eaten for 24 hours

3.Because the fruits were ripe . he ate all the fruits

4.He didn;t go to sleep because he hadn't finhished the letter

5.He is dismissed because he was late for work very often

6.He caused a serious accident because he drove so fast

7.Because the streets are narrow , so there aren't many people driving car in this city

8.I couldn't do the test because it was so diffcult

9.Because i don't know russian , i have to have my document translater into russian

10.The children had an accident because they went to school late

I.Rewrite the sentences with the same meanigs

1.I am interested in watching TV in the evening。

=>I like watching TV in the evening。

2. Lan didn't go to school yesterday because of her illness。

=>Lan didn't go to school yesterday because she was ill.

=> Lan was ill so she didn't go to school yesterday.

3. The journey was shorter than we thought at first。（not as as）

=>The journey isn't as long as we thought at first。

4. My class visited Hung King's Temple last week。

=>Hung King's Temple was visited by my class last week.

5. Salvador Dali's paintings are different from Picaso's paintings。

=>Picaso's paintings are not the same as Salvador Dali's paintings。

Lan didn't go to school yesterday because of her sickness

=>Because Lan was sick , she didn't go to school

Lan didn't go to school yesterday because of her sickness

=>Because Lan was sick ,she didn't go to school yesterday.

Lan didn't go to school yesterday because of her sickness

=>Because Lan was sick, she didn't go to school.

1.  We couldn’t go to school because of the bad weather.

=> Because the weather was bad, we couldn't go to school

2. “My teacher will help in difficult situations,” Tuan said.

=> Tuan said his teacher would help in difficult situations

 3. She began to work in this company 2 years ago.

=> She has worked in this company for 2 years

4. “ Do you like this pottery vase?” He asked me

=> He asked me if I liked that pottery vase

  5. My grandmother made these conical hats yesterday.

   => These conical hats were made by my grandmother yesterday

1 Because of an accident, I was late

2 Because the weather was bad, we delayed our trip

3 Because of the picture's beauty, I like it

4 Because of his height, Nam can reach the book on the shelf

5 Because he is ill, he can't drive

III. Rewrite sentences that they have the same meaning with the given ones. Use the words in brackets.

1. Because there was an accident, I was late. (because of) Because of the accident, I was late.

2. We delayed our trip because of the bad weather. (because)

because th weather was bad, we delayed our trip 

3. I like this picture because it's beautiful. (because of)

I like this picture because its beaty

4. Because Nam is tall, he can reach the book on the shelf. (because of)

because of being tall , nam can reach the book on the shelf.

5. He can't drive because of his illness. (because)

 He can't drive because he is ill

sang cái j

--> Because Lan ..........................

Lan didn't go to school yesterday because of her sickness

Because Lan has sick so she didn't go to school.