III. Combines these pairs of sentences. Use connectives because, as, since.
1. There was an accident that caused a traffic jam. My father went to his office late.
___________________________________________________________________________
2. The weather was so bad. We had to cancel our trip.
3. You can not drink water from that well. It is impure.
___________________________________________________________________________
4. Some rare animals were killed. Somebody burned the forest.
___________________________________________________________________________
5. The Dong Nai River is polluted. Many factories let their waste chemicals run directly into the river.
6. People need to purify the water in the river. It is so dirty and polluted.
___________________________________________________________________________
7. They came to the bus stop late. They missed the school bus.
_________________________________________________________________________
8. Some parts of the Sai Gon River were polluted by oil. There was a ship accident last week.
_________________________________________________________________________
9. The students felt quite sorry. They missed the lecture on protecting our environment.
__________________________________________________________________________
10. The local authorities encourage the citizens to plant more trees in the city. Trees can give shadows and purify the polluted air.
__________________________________________________________________________
III. Combines these pairs of sentences. Use connectives because, as, since.
1. because/ as /since there was an accident that caused a traffic jam,my father went to his office late.
2. because/ as /since the weather was so bad,we had to cancel our trip.
3. You can not drink water from that well because/ as /since it is impure.
4. Some rare animals were killed because/ as /since Somebody burned the forest.
5. The Dong Nai River is polluted because/ as /since Many factories let their waste chemicals run directly into the river.
6. People need to purify the water in the river because/ as /since It is so dirty and polluted.
7. because/ as /since They came to the bus stop late, they missed the school bus.
8. Some parts of the Sai Gon River were polluted by oil because/ as /since There was a ship accident last week.
9. The students felt quite sorry because/ as /since They missed the lecture on protecting our environment.
10. The local authorities encourage the citizens to plant more trees in the city because/ as /since Trees can give shadows and purify the polluted air.
