8.He can’t go out because he has to study for his exam.

->  If ...................................................................................

9. She is lazy so she can’t pass the exam. 

->If ...................................................................................

10. He will pay me tonight.I will have enough money to buy a car.

->If ........................................................................

11. He smokes too much; that’s why he can’t get rid of his cough.

If ...................................................................................

12. She is  shy, so she doesn’t enjoy the party.

If ...................................................................................

13. I will get a work permit. I will stay for another month.

If ...................................................................................

14. He doesn’t take  exercises. He is not healthy.

->If ...................................................................................

16. He doesn’t know how to prepare for a presentation. He doesn’t feel confident.
If ... ................................................................................