23.I couldn’t sleep because the bed was so ………………... ( comfort) 24. I can’t see him now; it’s not ___________________ (convenience) 25. They collected over 1000 for the petition. ( sign) 26. I put the on the table. ( apply) 27. Last year, we had an summer holiday. (enjoy) 28. We are cooking this soup . (experiment) 29.She is always worried about the ___ _______ of her family.(safe) 30.Bell demonstrated his invention at a lot of ___ _____ . (exhibit) 31.Hard work always brings _________________ .(succeed) 32.My baby sister was surprised when she looked at ___________ in the mirror. (she) 33.A fairy ____________changed her rags into beautiful clothes. ( magic) 34.You made a wise ___________ when you chose this dictionary. (decide) 35. ___________ is necessary, it helps you practice the words more times. (revise) 36.They are good at listening because they listen very ___________. (good) 37.We should save ___________ resources. (nature) 38.We like attending the English ___________ contests at my school. (speak) 39.Have you ever traveled on a ___________ ? (steam) 40.What is the correct ___________ of this word ? (pronounce) 41.___________ , I lost my keys on the way home . (fortunate) 

Rewrite the following sentences so that their meaning stays the same, using the words given.

1. There was a loud noise next to my door last night so I couldn’t sleep. (because)

____________________________________________________________________

2. The tsunami happened. Many people in this area became homeless. (made)

____________________________________________________________________

3. The acid rain happened last month. Many plants and trees died. (Since)

____________________________________________________________________

4. There have been conflicts in that country since last year. People live unhappily. (If)

____________________________________________________________________

5. This factory doesn’t treat its waste well so there is a lot of water pollution. (If)

____________________________________________________________________

Bài tập 3: Chọn câu trả lời đúng nhất
1. We couldn’t sleep last night_________the noise next door.
A. although B. since C. because D. because of
2. I did it_________they asked me to.
A. so B. because C. because of D. the reason
3. Daisy was late_________her car was broken down.
A. because B. because of C. if D. whether
4. _________he can’t afford a car, he goes to work by bicycle.
A. because B. as C. since D. all are correct
5. They were sacked_________their carelessness.
A. because B. because of C. although D. despite
6. The boys were punished_________they went to school late.
A. because B. because of C. although D. despite
7. The mother got angry because_________.
A. her son’s bad behaviour B. her son will behave badly
C. her son behaved badly D. her son bad behaing
8. He lost his job_________his laziness.
A. because B. because of C. if D. although

1. I asked Carol not to be there. She still showed up. (BUT)

2. He couldn’t sleep although he was tired. (BUT)

3. Mai’s mother was sick. She stayed at home. (SO)

4. Because the weather was cold, we didn’t go fishing. (SO)

5. They lost the match although they were a better team. (DESPITE)

6. He decided to get a job although the salary was low. (IN SPITE OF)

7. Because of the cheap price, we don’t buy this item. (BECAUSE)

8. Despite eating healthily, she still put on weight. (EVEN THOUGH)

9. The sky was gray and gloomy; however, we went to the beach. (DESPITE)

10. Jackson was going to study all night; therefore, he declined our invitation to dinner. (BECAUSE)

11. Because of failing the exam, he had to do the job he didn’t like. (THEREFORE)

12. It is very late now, she is still at the office. (ALTHOUGH)

13. The board awarded the prize to the reporter. (WAS)

14. Mary is cutting the cake with a sharp knife. (CUT)

15. The chief engineer was instructing the workers the plan. (INSTRUCTED)

16. The students has discussed the environmental problems recently. (BEEN)

17. He is obliged to clean the house before hanging out with friend. (HAS)

18. You aren’t allowed to wear casual clothes to school. (MUSTN’T)

19. It is necessary for us to study hard for good grades. (HAVE)

20. The students are permitted to cheat in the exams. (MUSTN’T)

The students musnt permitted to cheat in the exams.

1. I don’t know her number, so I don’t ring her up.

→ If …………………………………….....….…………………………….

2. There was a loud noise next to my door last night, so I couldn’t sleep.

→ Because …………………………………………………………………

3. They provided food then cleared up the debris.

→ After …………………………………………………………………….

4.Someone has stolen by bicycle.

→ My bicycle ……………………………………………………………….

5.It was the first time I had been in an earthquake(never)

-> I……………………………………………………….

6. I’m not you, but I think you should recycle these plastic carrier bags. ( if)

->……………………………………………………………………….

7. if / I / Nam / I / not / use / this car / very often.

->……………………………………………………………………

I. Rewrite the sentences, using “because”.

Example:   He couldn’t meet you because of being busy.

               " He couldn’t meet you because he was busy.

1. She must stay in bed because of her sickness.

" …………………………………………………………………………………………………

2. Two cars can’t pass each other because of the narrow road.

" …………………………………………………………………………………………………

3. Nobody can’t do this test because of its difficulty.

" …………………………………………………………………………………………………

4. They couldn’t keep on clearing the beach because of heavy rain.

" …………………………………………………………………………………………………

5. She can’t work hard because of her age.

"………………………………………………………………………………………………….

  II. Rewrite these sentences, using “because of “

1. She can’t work hard because she is very old.

" …………………………………………………………………………………………………

2. He likes her because she is beautiful.

" ……………………………………………………………………………………………….

3. I can’t buy this bike because I don’t have enough money.

" ……………………………………………………………………………………………….

4. She was very happy because she was given a new bike.

" ……………………………………………………………………………………………….

16)  Mary didn’t go to school yesterday because she was sick.>> Because of

17)  She went to bed early because she felt tired. >>Because of

18)  Margaret stayed at home because her mother was sick.>> Because of

19)  I couldn’t do the test because it was difficult.>> Because of

20)   I couldn’t read the letter because it was dark.>> Because of

21)   I can’t study because it is noisy.>> Because of

22)  The train come late because it was foggy.>> Because of

23)   The train was late because the fog was thick.>> Because of

24)  I can’t sleep because the weather is hot.>> Because of

25)  All the teacher love him because his conduct is good.>> Because of

26)  Because there was a traffic accident, I went to school late.>> Because of

27)  Because there is a  shortage of meet, we had to live on beans.>> Because of

28)  Because there was a lack of water, many trees died rapidly.>> Because of

29)  She walked slowly because her leg was injured.>> Because of

30)  Because it was sunny, we decided to go camping.>> Because of

6. The children couldn’t go swimming because the sea was very rough. 
The sea was too ______________________________________________________ 
7. The ink was so faded that I couldn’t read the word. 
The ink was too ______________________________________________________ 
8. The bridge was so low that the bus couldn’t go under it. 
It was ______________________________________________________ 
9. He is such a slow speaker that his students get bored. 
He speaks ______________________________________________________ 
10. These questions are too difficult for us to answer. 
These questions are so ______________________________________________________