1. Turn off the lights and you will not pay more money.

If you turn off the lights, you will not pay more money.

2. Unless she wears warm clothes, she will have a cold.

If she doesn't wear warm clothes, she will have a cold. 

3. Be careful or you may have an accident.

If you aren't careful, you may have an accident.

4. Phone your parents or you have a trouble.

If you don't phone your parents, you will have a trouble.

5. Unless she whispers, everyone knows what she saying.

If she doenn't whisper, everyone will know what she saying

6. There isn't a library in my neighborhood. I can not borrow books.

If there was a library in my neigborhood, I could borrow books

7. My health is not good. I don't play extreme sports.

If my health was good, I would play extreme sports.

8. We can't go for a picnic because it is pouring with rain

If it wasn't pouring with rain, we could go for a picnic.

9. I don't have much free time. I can't come to your party.

If I had much free time, I could come to your party.

10. Jim doesn't have any siblings. He feels lonely sometimes .

If Jim had some siblings, he wouldn't feel lonely sometimes.

`text(1. If you turn off the light, you will not pay more money)`

`text(2. If she doesn't wear warm clothes, she will have a cold)`

`text(3. If you aren't careful, you will have an accident)`

`text(4. If you don't phone your parents, you will have a trouble)`

`text(5. If she doesn't whisper, everyone will know what is she saying)`

`text(6. If there were a library in my neighborhood, I could borrow books)`

`text(7. If my healthy were good, I could play extreme sports)`