III/
1. If he didn't speak so quickly, I could understand him.
2. Smoke from mills,factories and industry can lead to health problems like asthma and lung diseases.
3. We don't trust Lan because of her bad behavior.
4. In spite of taking a taxi, he still arrived late for school.
5. Despite the bad weather, the football match was not cancelled.
6. The seller asked me if/ whether I would like the blue or the green one.
7. If people didn't use too much fertilizer , lands wouldn't be spoiled.
8. It’s so kind of Peter to help the injured people.
9. It might be better to see a specialist about this problem.
10. Since mathematics is a basic tool of thinking, it improves the way we think

Mình trình bày trong hình nhé >~<

#𝕄𝕪𝕪𝕟𝕙𝕙