I

1, If you don’t do your exercise, you will fail the exam.

Unless you do your exercise, you will fail the exam.

2, If you don’t save any money, you wont able to buy the house.

3, Unless you behave yourself, your parents will be very unhappy.

4, If you don’t do it carefully, you’ll feel sorry afterwards.

5, If you don’t ask him first, he won’t offer to help.

6, Unless you are calm, you will make a wrong decision.

7, If you aren’t careful, you will cut yourself with that knife.

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

9, If you aren’t patient, you will make mistakes.

10, If you don’t leave me alone, I will call the police.

11, If you tell lies to your boss, you will be fired at once.

12, If you tell me the whole truth, I will help you.

13, If you don’t keep silent, you will wake the baby up.

14, If you don’t stop talking, you won’t understand the lesson.

15, If you study hard, you will pass the exam.

16, If you aren’t patient, you will make mistakes.

17, If you don’t leave me alone, I will call the police.

Unless you leave me alone, I will call the police.

III

1, If my brother had enough money, he would buy that car.

2, If it didn’t rain, we would go out.

3, If I knew his address, I could contact him.

4, If it weren’t too cold, we could go swimming.

5, If the exercises weren’t very difficult, I could finish in fifteen minutes.

6, If she weren’t busy, she could go to the meeting.

7, If I met her, I would give her your letter.

8, If they weren’t too slow, they could win the match.

9, If she weren’t too weak, she could take some exercise.

10, If he spoke clearly, people would understand him.

11, If cat weren’t fury, I would like cats.

13, If the books weren’t expensive, I would buy them.

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

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

16, If he paid me tonight, I would have enough money to buy a car.

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

18, If she weren’t very shy, she could enjoy the party.

19, If I got a work permit, I would stay for another month.

20, If he took some exercises, he would not be so unhealthy.

21, If we had the right change, we could get the ticket.

22, If I knew her number, I would ring her up.

23, If I knew the answer, I could tell you.

24, If Peter didn’t eat so many chips, he wouldn’t be fat.

25, If I got a work permit, I would stay for another month.

I.

1.→If you don't do your exercises,you will fail the exam.

→Unless youdo your exercises , you will fail the exam.

2.If you save some money,you will able to buy the house.

3.Unless you behave yourself ,your parents will be very unhappy.

4.If you don't do it carefully,you'll feel sorry afterwards.

5.If you ask him first ,he will offer to help.

6.Unless you arecalm, or you'll make a wrong decision.

7.If you aren't careful,you'll cut yourself with that knife.

8.If you study hard,you will pass the exam.

9.If you are impatient, you won’t make mistakes.

10.Unless you don't leave me alone,I'll call the police.

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

12.If you tell me the truth,I'll help you.

13.If you don't keep silent,you'll wake the baby up.

14.If you stop talking,you'll understand the lesson.

15.If you study hard,you'll pass the exam.

16.If you are impatient, you won’t make mistakes.

17.Unless you don't leave me alone,I'll call the police.

III.

1.If my brother had enough money,he would buy that car.

2.If it didn't rain,we would go out.

3.If I knew his address,I could contact him.

4.If it weren't too cold,we could go swimming.

5.If the exercises weren't very difficult,I could finish in fifteen minutes.

6.If she weren't busy , she could go to the meeting.

7.If I met her,I would give her your letter.

8.If they weren't too slow,they could win the match.

9.If she weren't too weak,she could take any exercise.

10.If he spoke clearly,people would understand him.

11.If cats weren't fury,I would like cats.

13.If the books weren't expensive,Icould buy them.

14.If he didn't have to study for his exam,he could go out.

15.If she weren't lazy,she could pass the exam.

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

17.If he didn't smoke too much,he could get rid of his cough.

18.If she weren't very shy,she would enjoy the party.

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

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

21.If I had the right change,we coulf get the ticket.

22.If I knew her number,I would ring her up.

23.If I knew the answer ,I could tell you.

24.If Peter didn't eat so many chips, he wouldn't be fat.

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

#goodluck