`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 very shy, she would enjoy the party.
`6.` If he took some exercises, he would not be so unhealthy.
`7.` If you don't study hard, you won't pass the exam.
`8.` If you are impatient, you will make mistakes.
`9.` If I had eaten lunch, I wouldn't feel hungry now.
`10.` If I had enough money, I would buy it.
$@bangtann$
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