1. Since the air is polluted, many Vietnamese people wear masks. (due to)
Many Vietnamese people wear masks due to the polluted air
2. The factory is forced to close because of breaking the environmental rules. (because)
The factory is forced to close because it broke the environmental rules
3. She does not want to go out because the weather is rainy ( due to)
She does not want to go out due to the rainy weather
4. Because of the dangerous acid rain, trees leaves are damaged. (since)
Since acid rain is dangerous, trees leaves are damaged
5. Many pesticides are used in agriculture. Farmers can feel sick (make)
Many pesticides are used in agriculture, which can make farmers feel sick
6. The beggar got a terrible stomach ache last night since he ate dirty foods and drank polluted water (because of)
The beggar got a terrible stomachache last night because of eating dirty food and drinking polluted water
7. There was a loud noise next to my door last night, so I couldnt sleep. (because)
Because there was a loud noise next to my door last night, I couldn't sleep
8. The tsunami happened. Many people in this area became homeless. (made)
The tsunami happened, which made many people in this area become homeless