1. Fill in the blank with because or because of : 1. It was difficult to deliver the letter …………the sender had written the wrong address on the envelope . 2. Nancy Lee was awarded a scholarship ……… her superior scholastic ability. 3.We had to drive around the baby …….the bridge was destroyed in the storm. 4. ……….the invention of computers , pupils no longer spend much time on calculating. 5. I catch cold now …………….going out in the rain yesterday. 6. We plan to spend our vacation in the mountains ………….the air is purer there. 7. We decided the leave early ……………..the party was boring. 8. The students arrived late ……………….the traffic jam 9. Rescue attempts were temporarily halted ……………..the bad weather . 10. Paul may not go to the football game ….. his grades. 11. The teacher is sick ……………..her injured leg. 12. Mary looks happy ……………….she has just got good marks. 13. I couldn’t read the letter ……………….it got dark 14. I didn’t come in time ………..the traffic 15. He stayed at home yesterday ……………….the heavy rain.

Exercise: Put because/ since/ as or Because of/ due to/ owing to/ on account of/ as a result of: It was difficult to deliver the letter ……………………………the wrong address. ………………….there is an oil shortage.We have to cut down on our driving Rescue attempts were temporarily stopped ………………………..the bad weather. They visited their friends often …………………….they enjoyed their company. ………………his illness.Paul could not go to the football game Marcella was awarded a scholarship…………………………her superior ability. Nobody ventured outdoors ……………………………the hurricane warnings. ……………. the air is purer there.We plan to spend our vacation in the mountains We have to drive around the bay ……………..the bridge was destroyed in the storm. The chickens have died …………………the intense heat.

Supply either BECAUSE or BECAUSE OF :
1. It was difficult to deliver the letter …………………………..the wrong address.
2. We have to cut down on our driving ………………………….there is an oil shortage.
3. Rescue attempts were temporarily stopped …………………..the bad weather.
4. They visited their friends often ……………………….they enjoyed their company.
5. Paul could not go to the football game …………………………his illness.
6. Marcella was awarded a scholarship …………………………her superior ability.
7. Nobody ventured outdoors …………………………the hurricane warnings.
8. We plan to spen our vacation in the mountains………………….the air is purer there.
9. We have to drive around the bay …………………………the bridge was destroyed in the storm.
10. The chickens have died ………………………..the intense heat.

I. Supply either BECAUSE or BECAUSE OF as appropriate.

1. It was difficult to deliver the letter   the sender had written the wrong address on the envelope.

2. We decided to leave early         the party was boring.

3. Rescue attemps were temporarily halted       the bad weather.

4. Paul may not go to the football game his grades.

5. They visited their friends often they enjoyed their company.

II. Combine each pair of sentences, using BECAUSE, SINCE, AS.

1. She saw the wanted man in a small coffee shop. She phoned the police.

2. The teacher is sick. We’ll have no class tomorrow.

3. She walked slowly. Her leg was injured.

4. Mary looks happy. She has just got good marks.

5. He came to the office 10 minutes late. He missed the first bus.

6. She coughed and sneezed. The doctor said she had to stay out of crowd.

7. It got dark. I couldn’t read the letter.

8. I didn’t come in time. There was a traffic jam.

9. He stayed at home yesterday. His mother was sick.

10. We didn’t want to go out. It rained heavily.

I.                    Điền vào “because” hay “because of” :

1.       It was difficult to deliver the letter (phát/giao thư)……………….the sender had written the wrong address on the envelope.

2.       We decided to leave early ……………….the party was boring.

3.       Rescue attempts (nổ lực giải cứu)  were temporarily (tạm thời)  stopped ……….the bad weather.

4.       They visited their friends often ………………they enjoyed their company.

5.       Paul can’t go to the football game…………..his grades.

6.       Marcella was awarded a scholarship ( được thưởng học bổng) ………her superior scholastic ability. (Khả năng học tập vượt trội.)

7.       Nobody ventured outdoors (đi ra ngoài)……………the hurricane warning. (cảnh báo có bão)

8.       We plan to spend our vacation in the mountains ……………the air is purer (sạch hơn) there.

9.       We have to drive around the bay ……….the bridge was destroyed in the storm.

10.   The chickens have died …………..the intense heat.

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2. Supply either BECAUSE or BECAUSE OF :

1. It was difficult to deliver the letter …………………………..the wrong address.

2. We have to cut down on our driving..........................there is an oil shortage

3. Rescue attempts were temporarily stopped …………………..the bad weather.

4. They visited their friends often ……………………….they enjoyed their company.

5. Paul could not go to the football game …………………………his illness.

6. Marcella was awarded a scholarship …………………………her superior ability.

7. Nobody ventured outdoors …………………………the hurricane warnings.

8. We plan to spend our vacation in the mountains………………….the air is purer there.

9. We have to drive around the bay ……………………the bridge was destroyed in the storm.

10. The chickens have died ………………………..the intense heat.

Fill in the blanks with although,in spite of , because, because of

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

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

3........... we had planned everything carefully,a lot of things went wrong

4. I went home early.... I felt unwell

5. She accepted the job..... the salary was very high

6. She accepted the job.... the salary was very low

7. I managed to get to sleep...there was a lot of noise

8. I couldn’t sleep.... the noise

Fill in the blanks spaces with used to or be!get used to(in the right tense)and the correct form of the verb in brackets.

1.Mr.David (be)                     a fotballer when he was younger.

2.I(drive)                      on the left because I've lived in London a long time.

3.That furniture shop (be)                  a cinema.

4.I feel very full after the meal.I(not/eat)               so much.

5.when we were children,we(go)               swimming very often.

6.Where                   (people/buy)food before the supermarket was built?

7.It was diffcult at first,but Mike soon(drive)               on the left.