I. Complete the sentences with because/ because of/ although/ in spite of.

1.We delayed our trip ________because of_______ the bad weather.

2. Sue’s eyes were red ________because__________ she had been crying.

3. My mother is always complaining _________because of__________ the untidiness of my room.

4. The water in most river is unsafe to drink _________because_________ it’s polluted.

5. The trees were bend over __________because of_________ the wind.

6. You can’t enter this secure areas ________because___________ you don’t have an official permit.

7. It’s unsafe to travel in that country __________because of________ the ongoing civil war.

8. Several people in the crowd became ill and fainted __________because of________ the extreme heat.

9. Mark didn’t go to work yesterday _________because__________ he didn’t feel well

10. We couldn’t get into the disco _______because of____________ the enormous crowd.

11 . __________Although________ it rained a lot, we enjoyed our holiday.

12. Daniel forgot his passport ________in spite of___________ having it in his list.

13. I couldn’t get to sleep __________because of________ the noise.

14. ___________Because_______ I had nothing for lunch but an apple, I ate dinner early.

15. A lot of things went wrong ________although___________ all our careful plans.

16. She wasn’t wearing a coat __________although_________ it was quite cold.

17. He only accepted the job ________because of___________ the salary, which was very high.

18. I went home early ___________because________ I was feeling unwell.

19. ____________Although_______ I knew the truth, I decided not to tell them.

20. The villagers refused to leave _________because of__________ the drought.

21. We decided not to go out for a meal _________because___________ we were simply too tired.

22. Have you really got no money ___________in spite of________ the fact that you’ve had a job?

23. Sarah can’t climb up the tree ____________because of______ her fear of heights.

24. Matthew looked quite fresh, _________because__________ he’d been playing squash.

25. _______Because of______ his age, john was not hired _______although________ he had the necessary qualifications

1 . Complete the sentences with " , , although , in spite of " .

a , We delayed our trip ....because of...... the bad weather .

b , Sue's eyes were red .....because ..... she had been crying .

c , My mother is always complaining ......because of.... the untidiness of my room .

a) We delayed our trip because of the bad weather .

b) Sue's eyes were red because she had been crying .

c) My mother is always complaining because of the untidiness of my room .

1.                                        We delayed our trip    because of     the bad weather.

2.                                        Sue’s eyes were red      because   she had been crying.

3.                                         My mother is always complaining    because of   the untidiness of my room.

4.                                         The water in most river is unsafe to drink   because  it’s polluted.

5.                                          The trees were bend over  because of  the wind.

6.                                           You can’t enter this secure areas because you don’t have an official permit.

7.                                            It’s unsafe to travel in that country   because of  the ongoing civil war.

8.                                            Several people in the crowd became ill and fainted because of the extreme heat.

9.                                Mark didn’t go to work yesterday  because     he didn’t feel well.

10.                        We couldn’t get into the disco    because of   the enormous crowd.

Đáp án: because of

1. Although it rained a lot, we enjoyed our holiday.

2. a, ……in spite of……..... all our careful plans, a lot of things went wrong.

b, ……although…………... we'd phoned everything carefully, a lot of things went wrong.

3. a, I went home early …because…………….……... I was feeling unwell.

b, I went to work the next day……although…………… .... I was still feeling unwell.

4. a, She only accepted the job ..........because of............................. the salary, which was very high.

b, She accepted the job ………in spite of………….. the salary, which was rather low.

5. a, I managed to get to sleep …although……………………... there was a lot of noise.

b, I couldn't get to sleep ………because of………………………...... the noise.

ĐỀ: Rewrite these sentences using ALTHOUGH/THOUGH/DESPITE/IN SPITE OF
1/Because i am sick,l i do not go out 

->Because of  being sick, I do not go out

2/Because the weter is polluted,we can`t swim in that river

->Because of  the polluted water, we can't swim in that river

3/Because nga has had a sore leg,she had difficulty in walking 

->Because of having had a sore leg, Nga had difficulty in walking 

4/Because he behaved badly,he found himself in trouble 

->Because of behaving badly, he found himself in trouble

5/Because it was snowing,we didn`t go out for a walk

->Because of the snow, we didn't go out for a walk

6/Because of his good looks,he is popular with many girls 

->Because he has good looks, he is popular with many girls

7/Because of his serious sickness,he couldn`t come to the class 

->Because he was seriously sick, he couldn't come to the class

8/Because of too much exhaust fume,people have to wear gauze masks in the streets 

->Beccause  there are too much exhaust fume,people have to wear gauze masks in the streets 

9/Because of their good performance,they won the first prize 

->Because  they performed well, they won the first prize

10/Because of your advice,we didn`t use that poisonous chemical

->Because you advised us, we didn't use that poisonous chemical

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II. Complete the sentences with either BECAUSE or BECAUSE OF:

1. We postponed our trip…………. because of. . . . . . ……. ……. . . ……. the bad driving conditions.

2. Sue’s eyes were red……………because…. . …. . . . . … she had been swimming in a chlorinated pool.

3. We can’t visit the museum tomorrow………because……. . . . . . . . …… it isn’t open.

4. Jim had to give up jogging …………because of…………. . . . . . … his sprained ankle. (mắt cá bong gân)

5……………Because of………. . . . . heavy fog at the airport, we had to stay in Boston an extra day.

6. Please walk carefully …………because………. . . . . . . the walkway is slippery (adj-trơn) when wet.

7. Thousands of Irish people emigrated to the United States ………because of…………. . the potato famine

(nạn đóikém/sự khan hiếm) in Ireland in the middle of the nineteenth century

8. My lecture notes(diễn thuyết) were incomplete …………because. . . …. . the instructor talked too fast.

9……………. . Because. . . . . . . …. . it rained, we stayed home.

10. A tomato is classified(xếp loại) as a fruit, but most people consider it a vegetable …because……. .

it is prepared and eaten in the same way as lettuce(rau diếp), onions and other vegetables.

Exercise 1: Choose the correct answers.
1. He got wet he forgot his umbrella.
A. because of B. because C. but D. and
2. He stops working heavy raining.
A. in spite of B. although C. despite D. because of
3. They have a lot of difficulties in their life their poverty.
A. in spite of B. although C. because D. because of
4. Jill and Jolly were happy it was their both birthday party that day.
A. because B. even though C. spite of D. Despite
5. Nobody could hear her she spoke too quietly.
A. although B. because C. because of D. in spite of
6. We decided to leave early the party was boring.
A. although B. despite C. because D. because of
7. We all feel sad the bad news
A. because B. because of C. though D. despite
8. John lost his job his laziness.
A. because of B. because C. in spite of D. though
9. We can't go to Julia's party we're going away that weekend.
A. because B. because of C. although D. in spite of
10. Nam was absent from class yesterday he felt sick.
A. so B. because C. although D. but
Exercise 2: Choose the correct answers.
1. The boy can’t reach the shelf he’s not tall enough.
A. because B. although C. even though D. and
2. She couldn’t unlock it she had the wrong key.
A. while B. but C. though D. because
3. Nam failed the final exam he was lazy.
A. while B. though C. because D. but
4. We watched TV the whole evening we had nothing better to do.
A. because B. though C. so D. but
5. We didn’t go for a walk it was very cold.
A. though B. because C. but D. so
6. They decided not to go out for a meal they were too tired.
A. so B. because C. but D. if
7. I’m learning English I want to get a better job.
A. or B. because C. therefore D. but
8. Last night we came to the show late the traffic was terrible.
A. although B. despite C. and D. because
9. Lan couldn’t pass the exam she is too lazy.
A. because B. because of C. although D. in spite of

10. his broken leg, he didn’t come to class yesterday.
A. because B. because of C. despite D. so
Exercise 3: Complete the sentences with because/ because of.
1. We delayed our trip BECAUSE OF the bad weather.
2. Sue’s eyes were red BECAUSE she had been crying.
3. My mother is always complaining BECAUSE OF the untidiness of my room.
4. The water in most river is unsafe to drink BECAUSE it’s polluted.
5. The trees were bend over BECAUSE OF the wind.
6. You can’t enter this secure areas BECAUSE you don’t have an official permit.
7. It’s unsafe to travel in that country BECAUSE OF the ongoing civil war.
8. Several people in the crowd became ill and fainted BECAUSE OF the extreme heat.
9. Mark didn’t go to work yesterday BECAUSE he didn’t feel well.
10. We couldn’t get into the disco BECAUSE OF the enormous crowd.
Exercise 4: Complete the sentences with because/ because of.
1. I went home early BECAUSE I was feeling unwell.
2. We decided not to go out for a meal BECAUSE we were simply too tired.
3. I couldn’t get to sleep BECAUSE OF the noise.
4. He only accepted the job BECAUSE OF the salary, which was very high.
5. Sarah can’t climb up the tree BECAUSE OF her fear of heights.
6. BECAUSE OF his age, John was not hired ALTHOUGH he had the necessary qualifications.
7. Mary came to class late BECAUSE her motorbike had a puncture.
8. Sandy didn’t go to school yesterday BECAUSE she was sick.
9. She went to bed early BECAUSE OF her tiredness.
10. I couldn’t do the test BECAUSE it was too difficult.
Exercise 5: Rewrite the sentences, using because/because of
1. He didn’t come because of his sickness.

BECAUSE HE WAS SICK, He didn’t come
2. The train was late because the fog was thick.

BECAUSE OF THE THICK FOG, The train was late
3. The plane couldn’t take off because of the bad weather.

BECAUSE THE WEATHER WAS BAD, The plane couldn’t take off
4. He left the school because his family was poor.

BECAUSE OF HIS FAMILY'S POVERTY,The plane couldn’t take off
5. We couldn’t study because of the noise.

BECAUSE IT WAS TOO NOISE, We couldn’t study
6. I didn’t go swimming because it was cold.

BECAUSE OF THE COLD, I didn’t go swimming
7. These students arrive late because of the bad traffic.

BECAUSE THE TRAFFIC WAS BAD, These students arrive late
8. Mary can’t sleep because she has drunk a cup of strong coffee.

BECAUSE OF DRINKING A CUP OF STRONG COFFEE, MARY CAN'T SLEEP
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.