1. We must leave now , or we will miss the plane

=> If we don't leave now , we will miss the plane

2. Be careful or you many fall

=> If you are careless , you may fall

3. Hurry up or we'll be late for the concert

=> If we don't hurry up , we will be late for the concert

4. Oủ sources of energy will soon end if we don't try to save them

=> Unless we try to save our sources of energy , it will soon end

5. You will catch a cold if you don's keep your feet dry

=> Unless you keep your feet dry , you will catch a cold

6. Unless we protect the envirmonent , we will destroy ourselves

=> If we don't protect the eviroment , we will destroy ourselves

7. If she is more hard - working , she will get low marks

=> Unless she isn't more hard-working , she'll get low marks

8. Unless he listens to his parents , he will fail

=> If he doesn't listen to his parents , he will fail

1. We must leave now , or we will miss the plane

=> If we don't leave now , we will miss the plane

2. Be careful or you many fall

=> If you are careless , you may fall

3. Hurry up or we'll be late for the concert

=> If we don't hurry up , we will be late for the concert

4. Oủ sources of energy will soon end if we don't try to save them

=> Unless we try to save our sources of energy , it will soon end

5. You will catch a cold if you don's keep your feet dry

=> Unless you keep your feet dry , you will catch a cold

6.If she doesn't work harder, she'll lose her job

=> Unless she works harder, she won't lose her job

7.We will cycle to school every day. We will keep fitter

If we cycle to school every day, we will keep fitter .

8. We will use recycled products. We will save money

If we use recycled products, we will save money.

Rewrite the following sentences so that the meaning stays the same.

1. If the cart is not ready, we will go on foot. => Unless is ready, we will go on foot

2. We will miss the train if we do not start now. => Unless we start now,  We will miss the train

3. If Jane does not submit the assignment today, she will loose her marks. => Unless Janes submits the assignment today, she will loose her marks

4. Gina normally comes on time, unless his train is late. => Unless his train is late,  Gina normally comes on time

5. If you do not water the plants, they will not grow. => Unless you water the plants, they will not grow 

6. If you study, you will pass. => Unless you study, you will not pass

7. If you work hard, you will not fail. => Unless you work hard, you will fail

8. Unless we curb poverty, we will be a poor nation. => If curb poverty, we will not be a poor nation

9. Unless rural India becomes socially and economically free, there will be no true progress.=> If  rural India doesn't become socially and economically free, there will be no true progress.

10. Unless the plants get sunlight, they will not grow. => If the plants get sunlight, they will grow.

If Lan asks her teacher, he will explain it to her

If we had some money, we would have holiday

If we have holiday, we will go to Thailand

If you don't drive carefully, you will have an accident

If Lan's parents lived near HN, she would see them on weekend

If I knew the answer, I would tell you

1.Lan will ask her teacher.He will explain it to her

=>If Lan asks her teacher, he will explain it to her

2.We don't have holiday because we haven't got any money

=>If we got money, we would have holiday

3.we will have holiday.we will go to Thailand

=>if we have holiday, we will go to Thailand

4.drive carefully or you'll have an accident

=>if you don't drive carefully, you'll have an accident

5.Lan's parente don't live near.Hanoi,so she doesn't see them on weekend

=>if Lan's parents lived near Hanoi, she would see them on weekend

6.i don't know the answer so i ean't tell you

=>if I knew the answer, I would tell you

Rewrite :

1) He started driving 1 month ago.

-> He has .......driven for 1 month............................

2) If you don't leave now , we will miss the train.

-> Unless ..........you leave now , we will miss the train.................

Rewrite :

1) He started driving 1 month ago.

-> He has .......driven since 1 month.............................

2) If you don't leave now , we will miss the train.

-> Unless ..................you leave now, we will miss the train..........................

1. We must leave now , or we will miss the plane

=> If we don't leave now , we will miss the plane

2. Be careful or you many fall

=> If you are careless , you may fall

3. Hurry up or we'll be late for the concert

=> If we don't hurry up , we will be late for the concert

4. Oủ sources of energy will soon end if we don't try to save them

=> Unless we try to save our sources of energy , it will soon end

5. You will catch a cold if you don's keep your feet dry

=> Unless you keep your feet dry , you will catch a cold

6. Unless we protect the envirmonent , we will destroy ourselves

=> If we don't protect the eviroment , we will destroy ourselves

7. Unless she is more hard - working , she will get low marks

=> If she isn't more hard-working , she'll get low marks

8. Unless he listens to his parents , he will fail

=> If he doesn't listen to his parents , he will fail

1. We must leave now , or we will miss the plane

=> If we don't leave now, we will mis the plane.

2. Be careful or you many fall

=> If you aren't careful, you'll fall.

3. Hurry up or we'll be late for the concert

=> If you don't hurry up, you'll be late for the concert.

4. Our sources of energy will soon end if we don't try to save them

=> Unless we try to save our sources of energy, they will soon end.

5. You will catch a cold if you don's keep your feet dry

=> Unless you keep your feet dry, you will catch a cold.

6. Unless we protect the envirmonent , we will destroy ourselves

=> If we don't protect the envirmonent, we will destroy ourselves

7. Unless she is more hard - working , she will get low marks

=> If she isn't more hard working, she will get low marks.

8. Unless he listens to his parents , he will fail

=> If he doesn't listen to his parents, he will fail.

Tỷ ơi...

Tk em đi 

Em tk lại

1.---> They plan to make this beach a clean and beautiful place again.

2. ---> The students have collected old clothes for their charity programme last week.

3. ---> If we use the car all the time, we will make the air dirty

4. ---> -->Unless I leave now, I'll miss the train.

5. - - - > It i don't have a quiet room , I won't be able to do anything .

* Rewrite the sentences.

1. It is late now; I don't think Ann will come to see us.

-> I would be surprised if __________Ann came to see us________.

2. We don't go on holiday because we don't have enough money.

-> If _________we had enough money, we would go on holiday_________.

3. Do these exercises more carefully or you will fail the exams.

->Unless_________you do these exercises more carefully, you will fail the exams_________.

4. I do not know the answer so I cannot tell you.

-> If _________I knew the answer, I could tell you_________.

5. She can't apply for the job because she doesn't know Frencj.

-> If she knew__________Frencj, she could apply for the job________.

6. If she didn't come here now, we'd come back home.

-> Unless__________she came here now, we'd come back home________.

7. Be careful or you will not be able to get the job.

-> Unless__________you are careful, you won't be able to get the job________.

8. The trees will die unless it rains soon.

-> If_________it doesn't rain soon, the trees will die_________.

1) It is late now; I don't think Ann will come to see us

-> I would be surprised if Ann came to see us.

2)We don't go on holiday because we don't have enough money

-> If we had enough money, we would go on holiday.

3) Do these exercises more carefully or you will fail the exams

-> Unless you do these exercises more carefully, you will fail the exams.

4) I do not know the answer so I can not tell you

-> If I knew the answer, I could tell you.

5) She can't apply for the job because she doesn't know French

-> If she knew French, she could apply for the job.

6) if she didn't come here now, we'd come back home

-> Unless she came here now, we'd come back home.

7) Be careful or you will not be able to get the job

-> Unless you are careful, you will be able to get the job.

8) The trees will die unless it rains soon

-> If it doesn't rains soon, the trees will die.

1. I would be surprised if Ann came to see us now.

2. If we had enough money,we would go on holiday

3. Unless you do these exercises more carefully, you will fail the exam.

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

5. If she knew French, she could apply for the job

6. Unless she cam here now, we'd come back home

7. Unless you are careful, you will be able to get the job

8. If it rains soon, the tree won't die

* Rewrite the sentences.

1. It is late now; I don't think Ann will come to see us.

-> I would be surprised if __________Ann came to see us________.

2. We don't go on holiday because we don't have enough money.

-> If _________we had enough money, we would go on holiday_________.

3. Do these exercises more carefully or you will fail the exams.

->Unless_________you do these exercises more carefully, you will fail the exams_________.

4. I do not know the answer so I cannot tell you.

-> If _________I knew the answer, I could tell you_________.

5. She can't apply for the job because she doesn't know Frencj.

-> If she knew__________Frencj, she could apply for the job________.

6. If she didn't come here now, we'd come back home.

-> Unless__________she came here now, we'd come back home________.

7. Be careful or you will not be able to get the job.

-> Unless__________you are careful, you won't be able to get the job________.

8. The trees will die unless it rains soon.

-> If_________it doesn't rain soon, the trees will die_________.

1.I won't enjoy the film if you aren't with me.

Unless...you are with me, I won't enjoy the film..........

2. You must leave home early or you will miss the flight 

If you....don't leave home early, you will miss the flight .......

3.Joihn will pass the driving exam if he isn't nervous

Unless John is nervous, he  will pass the driving exam