1.That book is too expensive ,so i am not going to buy it.

->If the book........................weren't expensive , I would buy it............

2.We do not go out very often because we can not afford it.

->If we....... went out very often ,we could afford it............................................

3.It is rainning ,so we can not have lunch on the patio.

->If it.....weren't rainning ,we could not have lunch on the patio.......

4.Water these plants or they will wither.

->If you..............don't water these plants, they will wither......................................

->unless you...................water these plants ,they will wither.................................

1.That book is too expensive ,so i am not going to buy it.

->If the book were cheap, I would buy it

2.We do not go out very often because we can not afford it.

->If we could afford it, we would go out more often

3.It is rainning ,so we can not have lunch on the patio.

->If it weren't raining, we could have lunch on the patio

4.Water these plants or they will wither.

->If you don't water these plants, they will wither

->unless you water these plants, they will wither

1. We don’t visit you very often because you live so far away.

If you ...........didn't live so far away,We would visit you very often................

2. That book is too expensive, so I’m not going to buy it.

If the book .............were cheap, I would buy it........ ..........

3. We don’t go out very often because we can’t afford it

. If we ........................could afford it, we would go out more often.... ...................

4. It’s raining, so we can’t have lunch on the patio.

If it ...............weren't raining, we could have lunch on the patio......................

5. Water these plants or they will wither.

If you .......don't water these plants, they will wither.....

We don't visit you very often because you live so far away.  

=> If you didn't ive so far away, we would visit you very often.

That book is too expensive, so I'm not going to buy it. 

=> If the book weren't too expensive, I would buy it. 

We don't go out very often because we can't afford it. 

=> If we could afford it, we would go out very often.

It's raining, so we can't have lunch on the patio. 

=> If it weren't aining, we could have lunch on the patio. 

He doesn't have the money, so he cannot afford a new car. 

=> If he had the money, he could afford a new car.

He doesn’t know that it is dangerous, so he comes. 

=> If he knew that it is dangerous, he wouldn't come

I can’t get a job easily because I don’t have a degree.

=> If I had a degree, I could get a job easily.

My son wants to go for a picnic, but he doesn’t have time.

=> If my son had time, he would go for a picnic.

David doesn’t speak English well, that’s why he can’t find a good job.

=> If David spoke English well, he could find a good job.

I am not you. I can’t tell the police about the accident. 

=> If I were you, I could tell the police about the accident. 

1 we can not go because it is raining
>> if ..................it rains, we can not go...................................................
2 i can not give you a ride because i do not have a motorbike
>> if i ..................have a motorbike , I can give you a ride...................... 3 i am not rich , so i can not buy that house
>> if i ...................am rich , I can buy that house..................................................

1.We can not go because it is raining

=> If it weren't raining, we could go swimming.

2.I can not give you a ride because I do not have a motorbike.

=>If I had a motorbike, I could give you a ride.

3. I am not rich, so I can not buy that house.

=> If I were rich, I could buy that house

use IF

1. That car is too epensive, so I'm not going to buy it.

i would buy that car if it wasn't too expensive

2. We don't go shopping very often because we can't afford it.

We'd go shopping more often if we could afford it.

3. They don't understand the problem. They won't find a solution

if they understood the problem, They would find a solution

4. I can't phone you because I don't know your telephone number.

if I knew your telephone number, I could phone you

5. It's raining heavily, so I can't see her on time

if it wasn't raining heavily, I could see her on time​

1 isn't

2 returned

3 doesn't rain

4 didn't invite

5 would you do - were

6 will buy

7 drive - won't have

8 make - will get

9 would be

10 had gone - would have met

6. If the book (not be )isn't expensive, I'll buy it.

7. You would be very surprised if he (return)returned

8. I'll go out if it (not rain)doesn't rain.

9. They wouldn't come to the party if you (not invite)didn't invite them

10. What  would you do(do) if you (be)were  him? 

11. If that hat costs much, I (buy)will buy a small one.

12. If you (drive)drove more carefully, you (have)wouldn't have  so many accidents.

13. If I (make)make that mistake again, my teacher (get)will get  angry with me. 

14. If I spoke English, my job (be)would be a lot easier.

15. If he (go) had gone to London yesterday, he ( meet)would have met his old friend.

6.isn't

7.returns

8.doesn't rain

9.don't invite

10.What will you do if you are him

11.will buy

12.don't drive/ will have

13.make/ will get

14.will be

15.went/ will meet

III. Rewrite the sentences or combine each of the following pairs of sentences into one:

1. You are very young. You can’t have a front-door key (so. . . that)

you are so young that you can’t have a front-door key

2. It was very cold. We couldn’t bathe (so. . that)

It was so cold that we couldn’t bathe

3. I am rather old. I can’t wear that kind of hat. (so. . . that)

I am so old that I can’t wear that kind of hat

4. The road is very narrow. Two cars can’t pass each other. (so. . . that)

The road is so narrow that Two cars can’t pass each other

5. It’s not very dark. We can’t see the stars clearly. (enough)

It’s bright enough for us to see the stars clearly

6. The house is very expensive. Nobody can buy it. (such. . . that)

-it is such an expensive house that nobody can buy it

7. The boy is very nice. We all like him. (such. . . that)

-he is such a nice boy that we all like him

8. The weather was cold. We couldn’t go out. (such. . . that)

-it was such cold weather that we couldn't go out

9. The room was very dark. We couldn’t see anything. (such. . that)

-it was such a dark room that we couldn’t see anything

10. The day was nice. We decided to go to the beach. (such. . that)

-it was such a nice day that we decided to go to the beach

11. The floor wasn’t strong. We couldn’t dance on it (enough)

The floor wasn’t strong enough for us to dance on it

12. The ice is quite thick. We can walk on it (enough)

The ice is thick enough for us to walk on it

13. The package is very thick. I can’t push it through the letterbox (too)

The package is too thick that I can’t push it through the letterbox

14. Nobody could move the piano. It was too heavy. (too)

the piano was too heavy that nobody could move it

15. Don’t stand on that chair. It is not strong. (enough)

that chair is not strong enough for you to stand on

16. I can’t wear this coat in winter. It’s not warm. (enough)

this coat is not warm enough for me to wear it in winter.

17. I can’t take a photograph. It is very dark. (too)

It is too dark for me to take a photograph

18. I was very excited about going away. I couldn’t sleep. (too)

I was too excited about going away that I couldn’t sleep

19. It’s a good book. I can’t put it down. (such. . that)

It’s such a good book that I can’t put it down

20. He has difficulty finding shoes to fit him because his feet are very big. (so. . . that)

his feet are so big that he has difficulty finding shoes to fit him

21. Peter is very young so he cannot join in our trip. (too)

-. Peter is too young that he cannot join in our trip

22. My sister is very angry. She can’t say anything. (so. . . that)

My sister is so angry that She can’t say anything

23. This jacket is very small. I can’t wear it. (too)

-This jacket is too small for me to wear

24. It’s very early. Mr Brown can have a cup of coffee before going to work. (enough)

-It’s early enough for Mr Brown to have a cup of coffee before going to work

25. She can’t get married because she is not old. (enough)

- she is not old enough to get married

thank you bạn nha

We didn’t go to her party last night

-> we wish..had gone to her party last night..

They think that she broke the vase

-> she....is thought to have broken the vase..

She has a good relationship with all the people working here-

>she gets..a good relationship with all the people working here...

omeone mended the new jeans for her yesterday

->She..was mended the new jeans yesterday....

It is reported that he has been injured

->He..is reported to have been injured ..

My English is not good so I can’t apply for this job( enough)

->my..English is not good enough for me to apply for this job...

When did you become interested in classical music

->How long...have you become interested in classical music?....

I last saw her 10 years ago

-> I haven’t......seen her for 10 years.

We couldn’t get home before 8pm because we missed the last bus

->if...we hadn't missed the last bus,We could have got home before 8pm..

I got up late this morning so I missed the bus

->if...I hadn't got up late this morning ,I wouldn't have missed the bus...

The book is too expensive, I can’t buy it now

->if..The book weren't too expensive, I could buy it now...

Her English is not very good so she can not join their club

->if..Her English were very good ,she could join their club...

He was hungry because he didn’t have breakfast this morning

>if...He hadn't been hungry,he would have had breakfast this morning..

Our mother is not here,we can’t start the party-

>if...Our mother were here,we could start the party-...

I have to learn English again because I didn’t learn it carefully at school

->if.....I had learned English carefully at school,I wouldn't have learned it again..

Last night I didn’t watch that film because I had to do so much at school

->if.....,I had done so much at school,Last night I would have watched that film,.

She got bad marks because she didn’t study hard

->if...she had studied hard,She wouldn't have got bad marks....

He wants to become a volleyball player but he is not tall enough

->if......he were tall enough,He would become a volleyball player...

I didn’t finish the homework this morning so my teacher was very angry

->if....I had finished the homework this morning , my teacher wouldn't have been very angry......

The house is too expensive,we can’t buy it now

->if.....The house weren't too expensive,we could buy it now....

Her Japanese is not very good so she doesn’t apply for that job

->if.....Her Japanese were very good ,she would apply for that job......

He missed the bus this morning because he got up late

->if.....he hadn't got up late,He wouldn't have missed the bus this morning.....

Our teacher is not here,we can’t have a short break now

->if.......Our teacher were here,we could have a short break now...

I don’t understand this lesson because I missed the class yesterday

->if......I hadn't missed the class yesterday,I would understand this lesson....

Last night I watched TV so late and now I am very tired

->if....Last night I hadn't watched TV so late ,now I wouldn't be tired.....

She failed the exam because she didn’t study hard-

>if......she had studied hard,She wouldn't have failed the exam......

He can’t join our club because he is not tall enough

->if..he were tall enough,He could join our club....

1. We could do the test . It was very difficult (although)
=> Although the test was very difficult , we could do it

2.Tom couldn't go too school. He was ill ( so...that)
=> Tom was ill so that he couldn;t go to school

3.Solar anergy is cheap . It is also clean ( not only ... but also )
=> Solar energy is not only cheap but also clean

4. They arrived very late . They didn't see the beginning of the film (so...that)
=> They arrived very late so that they didn't see the beginning of the film

5.It was an expensive car . We couldn't afford to buy it(such)
=> It was such an expensive car that we couldn't afford to buy

6. There was few people at the meeting . It was cancelled(because)
=> The meeting was cancelled because there was few people at this

7.. We couldn't understand her because she spoke too fast (Therefore)
=> She spoke too fast,therefore we couldn;t understand her

8.I've meet too many people. I can't remember all their name (because)
=> I can't remember all their name because I've meet too many people

9. These exercise are very difficult . She can't do them (such...that)
=> These are such difficult exercise that she can't do them

10. It rained heavily . They went to school(despite)
=> Depite rainning heavily, they went to school

11. I can't go with you . I have a lot of work to do(Because of)
=> Because of having a lot of working, I can't go with you

1. We could do the test . It was very difficult (although)
Although the test was very difficult, we could do it

2.Tom couldn't go too school. He was ill ( so...that)
Tom was so ill that he couldn't go to school

3.Solar anergy is cheap . It is also clean ( not only ... but also )
Not only is solar energy cheap but it also clean

4. They arrived very late . They didn't see the beginning of the film (so...that)
They arrived so late that they didn't see the beginning of the film

5.It was an expensive car . We couldn't afford to buy it(such)
Such an expensive car ! We couldn't afford to buy it

6. There was few people at the meeting . It was cancelled(because)
It was cancelled because there was few people at the meeting

7.. We couldn't understand her because she spoke too fast (Therefore)

8.I've meet too many people. I can't remember all their name (because)
I can't remember all people name because I've met too many people

9. These exercise are very difficult . She can't do them (such...that)
It's such a difficult exercise that she can't do them

10. It rained heavily . They went to school(despite)
Despite heavy rain, they went to school

11. I can't go with you . I have a lot of work to do(Because of)
Because of doing a lot of work, I can't go with you