em thấy nó khá giống với bài tập thầy em đưa cho nên là em làm chớ ko chắc đáp án ạ💦

Pollution can be reduced if we join hands to prevent it

If farmers made use of pesticide more wisely the oil would not be poisoned

I won't believe it unless you show me the evidence

Unless you don't tell me the truth I will help you

If James had been more outgoing he would have more friends

I think the show would be successful if he were one of the organizers

If you paid more attention to what I said, you wouldn't make so many mistakes 

 If children are taught about environmental issues, they may change their attitudes towards pollution.

1. x -> Pollution can be reduced if we join hands to prevent it.

2. x -> If farmers made use of pesticide more wisely, the soil would not be poisoned.

3.x -> I won't believe it unless you show me the evidence.

4. x -> Unless you tell me the truth, I won't help you.

5. x -> If James were more outgoing, he would have more friends.

6. √

7. x -> If you paid more attention to what I said, you wouldn't make so many mistakes.

8. √