1. If I have enough money, I can go on a long holiday this year.
2. If he is fast, we will wait for him.
4. If I know his address, I can give it to you.
6. If she studies hard, she won't fail the exam.
7. If you don't go away, I wil call the police
9. Unless you finish your exercises, you can go to bed.
13. Unless they invite me, I will come.
1. If you don't keep silent, you will wake the baby up.
2. If you don't stop talking, you won't understand the lesson.
3. If I know hẻ number, I will ring her up.
4. If I don't know the answer, I can't tell you.
5.
1. Unless you don't like this one, I will bring you another.
2. Unless she hurry, she won't be late.
3. Unless you are careful, you won't cut yourself.
4. Unless you sneezed, he would have known that we were there.
1. If he hasn't to study for his exam, he can go out.
2. If she isn't lazy, she will pass the exam.
3. If he don't smokes, he can get rid of his cough.
4. If she isn't shy, she will enjoy the party.
5. If he take some exercises, he won't be unhealthy.
6. If I have the right change, we can get the ticket.
7. If you don't study hard, you won't pass the exam.
8. If you are impatient, you won't make mistakes.