A) Rewrite the following sentences
1. Because of the electricity shortage in their town, they sat in candle light the previous night . (since)
Since there was an electricity shortage in their town, they sat in candle light the previous night.
2. We couldn't find our way since we didn't know the district, (because of)
……………………………………………………………………………………………………….
3. Because of the low rise in salaries, civil servants are planning to go on a strike, (since
……………………………………………………………………………………………………….
4. Because of a hole in the ozone layer, within the next a hundred years, life on earth may end. (since)
……………………………………………………………………………………………………….
5. The inhabitants of the cave need help because of lack of electricity, running water, etc. (because)
……………………………………………………………………………………………………….
6. They are about to make new regulations in education since each year it is very complicated, (because)
……………………………………………………………………………………………………….
7. Since the weather conditions are bad, there have been many car accidents, (because of)
……………………………………………………………………………………………………….
8. My teeth decayed since I don't brush them three times a day. (because of)
……………………………………………………………………………………………………….
B) Choose the best alternative.
1. He became unhappy because of his father's death.
a) because b) because of c) since
2. Some marriages break down ......................... absence of affection.
a) since b) because c) because of
3. He felt embarrassed ......................... his clothes were dirty.
a) due to b) because c) because of
4. Children should drink milk every night.............. it has a great importance in their growth.
a) since b) because of c) owing to
5. She apologised......................... putting me into trouble.
a) since b) because of c) because
