=>
1. Pollution can be reduced if we join hands to preven it.
2. If farmers made use of pesticide more wisely, the soil would not be poisoned.
3. I won't believe unless you show me the evidence.
4. Unles you tell me the truth, I won't help you.
5. If James were more outgoing, he would have more friends.
6. Đúng
7. If you paid more attention to what I said, you wouldn't make so many mistakes.
8. Đúng
9. You will be punished if you park your car here.
10. If you win the competition, we will have a celebration.
