$_Rinne_$

1. If he didn’t have to study for his exam, he could go out.

2. If she weren’t lazy, she could pass the exam.

3.  If he pays me tonight, I will have enough money to buy a car.

4.  If he didn’t smoke too much, he could get rid of his cough.

5.  If she weren’t shy, she would enjoy the party.

6. If I get a work permit, I will stay for another month.

7.  If he took some exercises, He would be healthy.

8.If I had the right chance, we could get the ticket.

9.  If you don’t study hard, you won’t pass the exam.

10.  If you are impatient, you will make mistakes.

11.  If I had eaten lunch, I wouldn't have felt hungry now.

12. Unless they invite me, I won't come.

13.If he had revised all his lessons, he wouldn’t have failed the exam.

14.If you walk to the park, it will take you 5 minutes.

15.Unless you leave me alone,I'll call the police.

16.If it were snowy, the childrens wouldn't go to school 

17. Unless you tell me the whole truth, I wouldn't help you. 

18.If he hadnt been very bad-tempered, his wife wouldn't have left him soon after marriage 

19.If you tell lies to your boss , you'll be fired at once