5. If you don't study hard, you'll fail in the exam.
->Unless........................
6. If she doesn't water these tress, they will die.
->Unless........................
7. If I have time, I'll help you.
->Unless........................
8. If I win a big prize in a lottery, I'll build a school for the poor.
->Unless........................
9. If they don't come early, I'll not give them that project.
->Unless........................
10. If you don't drive more carefully, you'll have an accident
