1. Because of the loud noise from the music club, the residents of the street can't sleep
2. Since Vy ate a big dinner, she had a stomachache.
3, Due to the heavy rain, the road in front of my house was flooded.
4. Because his room is untidy, his mother is unhappy. 
5. Too much CO2 in the atmosphere causes global warming.

1.The noise from the music club is loud, so the residents of the street cannot sleep. (because of)

→Because of the loud noise from the music club, the residents of the street cannot sleep.

2.Vy had a stomachache because she ate a big dinner (since)

→Vy had a stomachache since she ate a big dinner.

3.Because it rained heavily, the road in front of my house was flooded (due to)

→ It rained heavily due to, the road in front of my house was flooded.

4.His room is untidy, so his mother is unhappy (because)

→Because his room is untidy, his mother is unhappy.

5.Global warming happens when there is too much carbon dioxide (CO2) in the atmosphere (cause)

→There is too much carbon dioxide (CO2) in the atmosphere causes global warming happens.

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