I. Combine each pairs of these sentences,using IF

Type 1:

1. We should take the map with us or we will lose our way on the street

IF We don't take the map with us ,we will lose our way on the street

2. Elien can borrow it, but she must give it back next week

If she doesn't give it back next week, Elien will not borrow it

3. The authoritiess are thinking of raising the petrol prices. I will have to cycle to work

if The authoritiess don't think of raising the petrol prices. I won't have to cycle to work

I. Combine each pairs of these sentences,using IF

Type 1:

1. We should take the map with us or we will lose our way on the street

If we take  the map with us, we won't lose our way on the street 

2. Elien can borrow it, but she must give it back next week

If Elien borrow it, she must give it back next week

3. The authorities are thinking of raising the petrol prices. I will have to cycle to work

If the authorities are thinking of raising the petrol prices, I will have to cycle to work

combine each pair of these sentences , using if

1. he can do a part to save the environment by buying recycled products

=>If he buys recycled products,he can do a part to save the environment

2. putting garbage into the bins is one answer to minimize pollution

=>If you put garbage into the bins ,you can minimize pollution

3. we should take the mao with us or we will lose out way on the street

=>If we don't take the map with us,we will lose out way on the street

4. ellen can borrow it , but she must give ir back next week

=>if Ellen gives it back next week,she can borrow it

5. the authorities are thinking if raising the petrol peices . i will have to cycle to work

=>If the authorities raise the petrol peices,they will have to cycle to work

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Combine each pair of these sentences, using if :

1. He can do a part to save the environment by buying recycled products.

=> If he buys recycled products, he can do a part to save the environment.

2. Putting garbage into the bins is one answer to minimize pollution.

=> If you put garbage into the bins, you will minimize pollution.

3. We should take the map with us or we will lose out way on the street.

=> If we don't take the map with us, we will lose out way on the street.

4. Ellen can borrow it, but she must give it back next week.

=> If Ellen gives it back next week, she can borrow it.

5. The authorities are thinking of raising the petrol peices. I will have to cycle to work.

=> If the authorities rise the petrol peices, I will have to cycle to work.

1. He can do a part to save the environment by buying recycled products

=>if he buys recycled products,He can do a part to save the environment

2. Putting garbage into the bins is one answer to minimize pollution

=>if you put garbage into the bins,it will minimize pollution

3. Working too much will make you tired

=>if you work too much,you will feel tired

4. The authorities are thinking of raising petrol prices. I will have to cycle to work

=>if i cycle to work,i will raise petrol prices

4. Chris will pass his exams, but he has to work too hard

=>If Chris works too hard,he will pass his exam

5. Allen can borrow it, but she must give it back next week

=>If Allen gives it back next week,she can borrow it

6. We should take the map with us if we don't want to lose our way in the forest(câu này vt vs "If" r mà)

1. If the Government are forced into another election, it will be the favorite to win.
⇒ Should the Government be forced into another election, it will be the favorite to win.
2. If you want to make an appointment to see Dr Simons, she is free after 9. A.M
⇒ Should you want to make an appointment to see Dr Simons, she is free after 9. A.M
3. If you have further problems with your printer, contact your dealer for advice.
⇒ Should you have further problems with your printer, contact your dealer for advice.
4. If you decide to accept the post, you will be expected to start work on 1st April.
⇒ Should you decide to accept the post, you will be expected to start work on 1st April.
5. If we hear any further news, we will be in touch immediately.
⇒ Should we hear any further news, we will be in touch immediately.
6. If you wish to take advantage of the offer, kindly tick the box on your order form.
⇒ Should you wish to take advantage of the offer, kindly tick the box on your order form.
7. If you change your mind, there will always be a job for you here.
⇒ Should you change your mind, there will always be a job for you here.

1. Should the goverment be forced into another election, it will be favorite to win.

2. Should you want to make an appointment to see Dr Simons, she is free after 9 A.M.  Should you have further problems with your printer, contact your dealer for advice. 4. Should you decide to accept the post, you will be expected to start work on 1st April. 5. Should we hear any further news, we will be in touch immediately. 6. Should you wish to take advantage of the offer, kindly tick the box on your order form. 7. Should you change mind, there will always be a job for you here.

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 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. Does it take most of Nam's free time to play computer games? (S spend time Ving = It takes S time to V)

2. If you work hard, you won't fail the exam (câu đk loại 1: If S V, S will V)

3. No matter how long you use, it won't wear out (No matter how adj S + V: Dù có như thế nào..)