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

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

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

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

3) He will pay me tonight; I will have enough money to buy a car.

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

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

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

5) She is very shy, so she doesn’t enjoy the party.

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

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

=> If .....I don't get a work permit,I won't stay for another month....

7. He doesn't take any exercises. He is so unhealthy.

=> If ..........he took any exercises,he wouldn't be so unhealthy.........

8. We can't get the ticket because I don't have the right change.

=> If ....... I had the right change,we could get the ticket.............

9. Study hard or you won't pass the exam.

=> If ...........you don't study hard, you won't pass the exam................

10. Don't be impatient or you will make mistakes

=>If...............you are impatient , you will make mistakes.................

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 didn't pay me tonight, i wouldn't have enough money to buy a car 

4. if he didn't smoke too much, he could get red of his cought

5. if she weren't very, she would enjoy the party

6. if i didn't get a work permit, i wouldn't stay for another month

7. if he weren't so unhealthy, he would take some excercise 

8. if we could get the ticket, i would have the right change 

9. if you study hard, you pass the exam 

10. if you are impatient, you won't make mistakes

            -answer by min-

doneat9:12pm

p/s : vote và chọn clthn cho mình nhé ><