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 the bad weather.
2. Sue’s eyes were red she had been crying.
3. My mother is always complaining the untidiness of my room.
4. The water in most river is unsafe to drink it’s polluted.
5. The trees were bend over the wind.
6. You can’t enter this secure areas you don’t have an official permit.
7. It’s unsafe to travel in that country the ongoing civil war.
8. Several people in the crowd became ill and fainted the extreme heat.
9. Mark didn’t go to work yesterday he didn’t feel well.
10. We couldn’t get into the disco the enormous crowd.
Exercise 4: Complete the sentences with because/ because of.
1. I went home early I was feeling unwell.
2. We decided not to go out for a meal we were simply too tired.
3. I couldn’t get to sleep the noise.
4. He only accepted the job the salary, which was very high.
5. Sarah can’t climb up the tree her fear of heights.
6. his age, John was not hired he had the necessary qualifications.
7. Mary came to class late her motorbike had a puncture.
8. Sandy didn’t go to school yesterday she was sick.
9. She went to bed early her tiredness.
10. I couldn’t do the test it was too difficult.
Exercise 5: Rewrite the sentences, using because/because of
1. He didn’t come because of his sickness.
2. The train was late because the fog was thick.
3. The plane couldn’t take off because of the bad weather.
4. He left the school because his family was poor.
5. We couldn’t study because of the noise.
6. I didn’t go swimming because it was cold.
7. These students arrive late because of the bad traffic.
8. Mary can’t sleep because she has drunk a cup of strong coffee.
9. Because of getting up early, he wasn’t late for the first train.
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.
B.best friend 
C. tình yêu
