1, If he didn't have to study for his exam , he could go out.
2, If she wasn't lazy , she could pass the exam.
3, If he won't pay me tonight , i wouldn't have enough money to buy a car.
4, If she didn't smoke too much , she could get rid of her cough.
5, If she wasn't very shy , she could enjoy the party.
6, If i won't get a work permit , i wouldn't stay for another month .
7, If he took any exercises , he would be healthy.
8, If i had the right change , we could get the ticket .
9, If you don't study hard , you won't pass / will fail the exam.
10, If you are impatient , i will make mistakes .
    ( lớp 6 đội tuyển mới hok If chứ nhỷ ) :)