K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

19 tháng 8 2024

1 studies - will pass

2 don't take - will get

3 arrives - will reach

4 isn't careful - will get

5 rains - will stay

6 will win - practice

7 won't go - doesn't finish

8 will buy - save 

19 tháng 8 2024

9 will be - receive 

10 won't pass - don't study

11 arrive - will catch

12 studies - will pass

13 don't hurry - will miss

14 finishes - will go

14 rains - will stay

Supply the correct form of the verbs in brackets1. If you study hard , you ( pass ) the exam easily 2. He has decided ( go ) to work in a school in a mountainous area3. We didn`t mind (work) late to complete the task4. We suggested ( collect ) unused clothes for the earthquake victims 5. You should avoid ( use ) too much shorthand in formal online communication6. Do you enjoy ( meet ) face to face ?7. The village(evacuate ) to a safe place by the rescue workers before the typhoon (...
Đọc tiếp

Supply the correct form of the verbs in brackets
1. If you study hard , you ( pass ) the exam easily 
2. He has decided ( go ) to work in a school in a mountainous area
3. We didn`t mind (work) late to complete the task
4. We suggested ( collect ) unused clothes for the earthquake victims 
5. You should avoid ( use ) too much shorthand in formal online communication
6. Do you enjoy ( meet ) face to face ?
7. The village(evacuate ) to a safe place by the rescue workers before the typhoon ( srtike) 
8. I hope you ( not / work ) when I arrive at 8p,m today !
9. They intend ( stay ) there for a week
10. Soil ( not / be ) so polluted if farmers didn`t use much chemical fertilizer
12. He asked me if there (be) rain on the Moon
13. Hoa said that she ( go) to school by bike everyday
14. Which subjects you ( study ) at 3.00 p.m tomorrow?
15. The development of science and technology ( bring ) a lot of benefits to people 
16. My uncle wasn`t at home when I arrived . He (just/ go )out
17. They (decorate) the house when you (come ) next Sunday
18. My brother spends of most his free time (play) games 
19. If I (be) , I ( not/ come ) to his party
20.We dislake ( communicate) through message boards or online meetings 
 

1
14 tháng 6 2016

1. If you study hard, you will pass the exam easily. 

2. He has decided to go to work in a school in a mountainous area.

3. We didn't mind working late to complete the task.

4. We suggested collecting unused clothes for the earthquake victims.

5. You should avoid using too much shorthand in formal online communication.

6. Do you enjoy meeting face to face?

7. The village was evacuated to a safe place by the rescue workers before the typhoon striked.

8. I hope you won't work when I arrive at 8 pm today!

9. They intend to stay there for a week.

10. Soil wasn't so polluted if farmers didn't use much chemical fertilizer.

12. He asked me if there was rain in the Moon.

13. Hoa said that she went to school everyday.

14. Which subject will you study at 3.00 p.m tomorrow?

15. The development of science and technology brings a lot of benefits to people.

16. My uncle wasn't at home when I arrived. He had just gone out.

17. They will decorate the house when you come next Sunday.

18. My brother spends most of his free time playing games.

19. If I were you, I wouldn't come to his party.

20. We dislike communicating through message boards or online meetings.

 

9 tháng 8 2018

1)If Tam(not study)..don't study... hard,he(fail). will fail.....in the next exam

2)We(be).will be...late for school i we(not get).don't get...up early

3)You(feel)......will feel.....healthy again if you(drink).drinks..this

4)If she(have)...has...enough money,she(buy)..will buy....that new mobile phone

5)If he(not pass).doesn't pass ..the driving test,we(be)..will be....disappointed

6)I(not write)...won't write...to you if you(not send)...don't send...me your address

9 tháng 8 2018

Wrie conditional sentences Type 1

1)If Tam(not study)..doesn't study... hard,he(fail).will fail.....in the next exam

2)We(be).will...late for school if we(not get).don't get...up early

3)You(feel)...will........healthy again if you(drink).drink..this

4)If she(have).has.....enough money,she(buy)will buy......that new mobile phone

5)If he(not pass).doesn't pass..the driving test,we(be)...will...disappointed

6)I(not write).won't write.....to you if you(not send).don't send.....me your address

18 tháng 8 2018

II ,

1. If he ______studies_______ (study ) hard , he _____will pass_______ (pass ) the exam .

2.If you _____practice_____(practice) everyday ,you ______will play______( play ) violin very well .

3. If she ______eats_____(eat ) too must fast food , she _____will put on_____( put on ) weight .

4. He ______will buy______(buy ) a farm in Alentejo if he ______earns______( earn )lots of money .

5. They _____will get_____(get ) drunk if he ______drinks______ (drink ) too much alcohol .

6. If one ____eats______(eat ) an apple a day , one _______will keep______(keep ) the doctor away .

7. If John ___doesn't follow____( not / follow ) my advice , he ______will get______ ( get ) in trouble.

8. If the court _____finds_____ ( find ) them guilty , they ______will go______ ( go ) to jail .

9. If he ____saves_____ ( save ) enough money , he ____will buy___ (buy) a beach house .

10 . I ______will go_______ ( go ) to university if i _______pass________ (pass ) this last exam .

Task 6. Give the correct form of verbs. 1.They ________________ in London since 1980 . (live) 2.She ______________________ here for two years. (work) 3.John ___________________ this job ? (do) 4.They ___________________in Hanoi from 1970 to 1999 ( not live) 5.You _______________ your book on my desk last night ? (put) 6.He _________________ English at this school now. (study) 7.Our present teacher likes ________________ in this city . (live) 8.Nobody lives in those houses. They...
Đọc tiếp

Task 6. Give the correct form of verbs.

1.They ________________ in London since 1980 . (live)

2.She ______________________ here for two years. (work)

3.John ___________________ this job ? (do)

4.They ___________________in Hanoi from 1970 to 1999 ( not live)

5.You _______________ your book on my desk last night ? (put)

6.He _________________ English at this school now. (study)

7.Our present teacher likes ________________ in this city . (live)

8.Nobody lives in those houses. They ___________________ empty for many years (be)

9.Cindy is in her office. She _____________ (work) until 7 o'clock.

10. My sister _______________ to see my last night (come)

Task 7 .Complete the sentences with the correct form of the verb with conditional sentence - type 1.
1. We (do) _______________________ this for you if you want.
2. If we (need) _______________________ some help, we will ask.
3. If Peter stays with his grandparents, Susan (not be) ____________ happy.
4. If we win the money, we (buy) _______________________ a new house.
5. She (not write) _______________________ to you if she leaves.
6. We (go) _______________________ on holiday if there is time.

7. If we_________________(plant) more trees, the air__________________(be) fresher.

8. If the soil___________________(be) polluted, thevegetables_____________________(die).

9. Unless he____________________(call) me, I_____________________(stay) at home.

10. The weather is not very good. It might____________________(rain) this afternoon.

11. If a student_______________(recycle) the papers, he________________(save) energy.

12. I_________________________(not clean) my room for a long time.

1
19 tháng 4 2018

Task 6. Give the correct form of verbs.

1.They __________have lived______ in London since 1980 . (live)

2.She _________has worked__________ here for two years. (work)

3.Does John _______do____________ this job ? (do)

4.They ______did not live___in Hanoi from 1970 to 1999 ( not live)

5.Did You ______put______ your book on my desk last night ? (put)

6.He ______is studying________ English at this school now. (study)

7.Our present teacher likes ______living____ in this city . (live)

8.Nobody lives in those houses. They have been__ empty for many years (be)

9.Cindy is in her office. She __will work_____ (work) until 7 o'clock.

10. My sister ____came______ to see my last night (come)

Task 7 .Complete the sentences with the correct form of the verb with conditional sentence - type 1.
1. We (do) _______will do_________ this for you if you want.
2. If we (need) ____need_______ some help, we will ask.
3. If Peter stays with his grandparents, Susan (not be) __will not be____ happy.
4. If we win the money, we (buy) ____will buy______ a new house.
5. She (not write) __will not write_____ to you if she leaves.
6. We (go) _______will go___________ on holiday if there is time.

7. If we___plant_____(plant) more trees, the air__will be__be) fresher.

8. If the soil__is____(be) polluted, thevegetables___will die___(die).

9. Unless he____calls___(call) me, I___will stay____(stay) at home.

10. The weather is not very good. It might__rain____(rain) this afternoon.

11. If a student___recycles____(recycle) the papers, he___will save___(save) energy.

12. I_______haven't cleaned____(not clean) my room for a long time.

correct the verb form 1,if you(go)......................away,please write to me 2,if you (be).......................in,i should have given it to you 3,if he(he).......................another cake,he will be sick 4,i (not do).....................that if i (be)..................you 5,if he(take).......................my advice everything can go well 6,i would have come sooner if i (know).................you were here 7,he never does homework .if he (do).................his homework he(not...
Đọc tiếp

correct the verb form

1,if you(go)......................away,please write to me

2,if you (be).......................in,i should have given it to you

3,if he(he).......................another cake,he will be sick

4,i (not do).....................that if i (be)..................you

5,if he(take).......................my advice everything can go well

6,i would have come sooner if i (know).................you were here

7,he never does homework .if he (do).................his homework he(not worry).................about his examination

8,it is too bad we lost the game.if you(play)..................for us ,we(win)...................

9,what you (do).....................if she refuses your invitation?

10,if today (be)...................sunday,we(go).................to the beach

11,unless they (pass)............their examinations thay would join the army

12,you(be)......................ill if you drink that water

13,if tom (go).................to bed earlier he would not be so tired

14,had we known your address,we(write)....................you a letter

15if it is raining heavily,we (not go).....................for a donkey ride

16,if he (try)....................hard,he 'll pass the examination

17,i could understand the frech teacher if she (speak)..................more slowly

18,if she(not be)...................busy,she would have come to the party

19,if i(finish)..............the work in time i (go)...........................to the football game

20,if you(see).................mary today,please (ask)...................her to call me

1
29 tháng 11 2018

correct the verb form

1,if you(go)..........go............away,please write to me

2,if you (be)............are...........in,i should have given it to you

3,if he(he).............has..........another cake,he will be sick

4,i (not do).........wouldn't do............that if i (be)......were............you

5,if he(take).............takes..........my advice everything can go well

6,i would have come sooner if i (know)......have known...........you were here

7,he never does homework .if he (do).....didn't do............his homework he(not worry).....wouldn't worry............about his examination

8,it is too bad we lost the game.if you(play)....play..............for us ,we(win).........will win..........

9,what you (do)........will you do.............if she refuses your invitation?

10,if today (be).........is..........sunday,we(go)...........will go......to the beach

11,unless they (pass)......pass......their examinations thay would join the army

12,you(be).........will be.............ill if you drink that water

13,if tom (go).......went..........to bed earlier he would not be so tired

14,had we known your address,we(write)......wrote..............you a letter

15if it is raining heavily,we (not go)........won't go.............for a donkey ride

16,if he (try).........tries...........hard,he 'll pass the examination

17,i could understand the frech teacher if she (speak)..........speaks........more slowly

18,if she(not be)............haven't been.......busy,she would have come to the party

19,if i(finish).....finish.........the work in time i (go)........will go...................to the football game

20,if you(see).........see........mary today,please (ask)........ask...........her to call me

I , 1. if you ________( squeeze ) an orange , you _________ ( get ) orange juice . 2. you _________ (put ) on some more weight if you _______ ( eat ) too much sugar . 3. If i __________ ( study ) a lot , i _______ (pass ) the year . 4. If you ________( press ) that button , the machine _________ ( stop ) functioning . 5. If you_______ ( not /apologise ) , she ______ ( not / forgive ) you . 6. If you ___________ ( want ) the dishes today , I ________ ( dust ) the house . 7. What...
Đọc tiếp

I ,

1. if you ________( squeeze ) an orange , you _________ ( get ) orange juice .

2. you _________ (put ) on some more weight if you _______ ( eat ) too much sugar .

3. If i __________ ( study ) a lot , i _______ (pass ) the year .

4. If you ________( press ) that button , the machine _________ ( stop ) functioning .

5. If you_______ ( not /apologise ) , she ______ ( not / forgive ) you .

6. If you ___________ ( want ) the dishes today , I ________ ( dust ) the house .

7. What _____________( hapen ) if i ________ ( press ) this button ?

8 . If there ___________ ( not/be ) enough water in the next few years , many people _______ (die )

9 . If we _______ ( not / recycle ) , we _______ (put ) our own survival at risk .

10. It _________( be) damaged if you ___________ ( press ) it too mucj .

11. If you ____________ ( touch ) the dog ,it _____ ( bite ) you .

12. Students ___________( get) good marks if they ____________( study ) regularly .

1
18 tháng 8 2018

I ,

1. if you squeeze ( squeeze ) an orange , you will get ( get ) orange juice .

2. you will put (put ) on some more weight if you eat ( eat ) too much sugar .

3. If i study ( study ) a lot , i will pass (pass ) the year .

4. If you press ( press ) that button , the machine will stop ( stop ) functioning .

5. If you don't apologise ( not /apologise ) , she won't forgive ( not / forgive ) you .

6. If you want ( want ) the dishes today , I will dust ( dust ) the house .

7. What will happen ( hapen ) if i press ( press ) this button ?

8 . If there isn't ( not/be ) enough water in the next few years , many people will die (die )

9 . If we don't recycle ( not / recycle ) , we will put (put ) our own survival at risk .

10. It will be ( be) damaged if you press ( press ) it too mucj .

11. If you touch ( touch ) the dog ,it will bite ( bite ) you .

12. Students will get ( get) good marks if they study ( study ) regularly .

Put the verb in brackets in the correct form 1.If you (go) away, please write to me 2.If you (be) in. I would have given it to you 3.If he (eat) another cake, he will be sick 4.I (not do) that if I (be)you 5.If he (take) my advice, everything can go well 6.I would have come sooner if I (know) you were here 7.He never does homework. If he (do) his homework, he (not worry) about this exam 8.It's too bad we lost the game. If you (play)for us, we (win) 9.What you (do) if she refuses your...
Đọc tiếp

Put the verb in brackets in the correct form

1.If you (go) away, please write to me

2.If you (be) in. I would have given it to you

3.If he (eat) another cake, he will be sick

4.I (not do) that if I (be)you

5.If he (take) my advice, everything can go well

6.I would have come sooner if I (know) you were here

7.He never does homework. If he (do) his homework, he (not worry) about this exam

8.It's too bad we lost the game. If you (play)for us, we (win)

9.What you (do) if she refuses your invitation

10.If today (be)Sunday, we(go) to the beach

11.I wish I (see) her off at the airport yesterday

12.Tom wishes he (have) enough money to buy a new car now

13. Mary wishes she (become) an astronaut someday

14.He wishes he ( not buy) that old car

15.If we (pollute) the water, we will have no water to use

16.If we cut down trees in the forest, there (be)big flood every year

17.If he (not pass) the driving test, we (be)disappointed

18.I (not write)to you if you (not send)me your address

19.The sea (get) warmer if the earth (get) warmer

20.If we (not protect) the animals, they (kill)

21.Our lives(destroy)if the earth didn't go round

22.We will go for a picnic if the weather(be) fine tomorrow

23.If I were you I (travel)around the world

24.If there were flying saucers, there (be)traces of their landing

25.I would take photos of UFOs if I (see) them

26.What (you say)if I offered you a job

27.The children always (get)frightened if they watch horror films

28.If it (not be)for you, I would be late

29.I can't help feeling sorry for the hungry children. If only there (be)peace in the world

30. Were I to become president, my first act (be) to help the poor

31.If he (listen) to his father's advice, he would still be working here

32.If she hadn't stayed up late lastnight, she (not be) tired now

2
24 tháng 7 2018

1.If you (go)go away, please write to me

2.If you (be)had been in. I would have given it to you

3.If he (eat)eats another cake, he will be sick

4.I (not do)wouldn't do that if I (be)were you

5.If he (take)takes my advice, everything can go well

6.I would have come sooner if I (know)had known you were here

7.He never does homework. If he (do)did his homework, he (not worry)wouldn't worry about this exam

8.It's too bad we lost the game. If you (play)had play for us, we (win) would have won

9.What will you (do)do if she refuses your invitation

10.If today (be)were Sunday, we(go)would go to the beach

11.I wish I (see)had seen her off at the airport yesterday

12.Tom wishes he (have)had enough money to buy a new car now

13. Mary wishes she (become)would become an astronaut someday

14.He wishes he ( not buy)didn't buy that old car

15.If we (pollute)pollute the water, we will have no water to use

16.If we cut down trees in the forest, there (be)will be big flood every year

17.If he (not pass)doesn't pass the driving test, we (be)will be disappointed

18.I (not write)won't write to you if you (not send)don't send me your address

19.The sea (get)gets warmer if the earth (get)gets warmer

20.If we (not protect)don't protect the animals, they (kill)will be killed

21.Our lives(destroy)would destroy if the earth didn't go round

22.We will go for a picnic if the weather(be)is fine tomorrow

23.If I were you I (travel)would travel around the world

24.If there were flying saucers, there (be)would be traces of their landing

25.I would take photos of UFOs if I (see) saw them

26.What (you say)would you say if I offered you a job

27.The children always (get)get frightened if they watch horror films

28.If it (not be) wasn't for you, I would be late

29.I can't help feeling sorry for the hungry children. If only there (be)was peace in the world

30. Were I to become president, my first act (be)would be to help the poor

31.If he (listen)listened to his father's advice, he would still be working here

32.If she hadn't stayed up late lastnight, she (not be)wouldn't have been tired now

24 tháng 7 2018

nhanh dữ

finsh the scond sentence in such a way that it means exactly the same as the one written before it. *Example: He usually goes to work by bicycle\(\rightarrow\)He usually rides his bicycle to work 1. Learning English is very useful. \(\rightarrow\)It's.................................................... 2.They spent 2 years building this villa. \(\rightarrow\)It's.................................................... 3.He didn't hurry,so he missed the...
Đọc tiếp

finsh the scond sentence in such a way that it means exactly the same as the one written before it.

*Example: He usually goes to work by bicycle\(\rightarrow\)He usually rides his bicycle to work

1. Learning English is very useful.

\(\rightarrow\)It's....................................................

2.They spent 2 years building this villa.

\(\rightarrow\)It's....................................................

3.He didn't hurry,so he missed the train.

\(\rightarrow\)If......................................................

4.Janet is te tallest student in her class.

\(\rightarrow\)No one.............................................

5.The car was so expensive that i didn't bye it.

\(\rightarrow\)The car was too................................

6.We started learning english more than 6 years ago

\(\rightarrow\)We have.............................................

7.I last saw him 3 day ago.

\(\rightarrow\)I haven't...............................................

8.The robbers made the bank manager hand over the money.

\(\rightarrow\)The bank manager..............................

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

\(\rightarrow\)If........................................................

10.I think you should hand in your homework on time.

\(\rightarrow\)If i were you,.......................................

11.If you don't water the plants regularly enough,they will die

\(\rightarrow\)Unless...............................................

2
30 tháng 5 2019

1. Learning English is very useful.

→→It's very useful to learn English.

2.They spent 2 years building this villa.

→→It took them 2 years to build this villa.

3.He didn't hurry,so he missed the train.

→→If he hadn't hurry, he wouldn't have missed the train.

4.Janet is te tallest student in her class.

→→No one is taller than Janet in her class.

5.The car was so expensive that i didn't bye it.

→→The car was too expensive for me to buy.

6.We started learning english more than 6 years ago

→→We have learnt E for more more than 6 years.

7.I last saw him 3 day ago.

→→I haven't seen him for 3 days.

8.The robbers made the bank manager hand over the money.

→→The bank manager was made to hand over the money.

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

→→If we have enough money, we will go on holiday.

10.I think you should hand in your homework on time.

→→If i were you, I would hand in your homework on time.

11.If you don't water the plants regularly enough,they will die

→→Unless you water the plants regularly enough, they will die.

30 tháng 5 2019

FIX

3.He didn't hurry,so he missed the train.

→→If....HE HADN'T HURRIED,HE WOULDN'T HAVE MISSED THE TRAIN..................................................

4.Janet is te tallest student in her class.

→→No one...IN HER CLASS IS TALLER THAN JANET..........................................

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

→→If...WE HAD ENOUGH MONEY,WE WOULD GO ON HOLIDAY.....................................................

29 tháng 11 2018

Cau dCau dieu kien loai 1

If it (an).........., the children (not go) .......... for a walk

2. If she ( not read) ........the novel, she (nnot pass) .......... the literature test

3. If i (not argue).......... with my father, he ( lend) ........... me his motorbike

4. If we (take)........ the bus, we (not arrive)........ in time

5. If dick (not buy) ......... the book, hus friends (be) ........... angry with him

Cau dieu kien loai 2

1. I could tell you what this means if i ( know) knew greek

2. If everybody (give) gave $1 we would have enough

3. He might get fat if he ( stop) stopped smoking

4. If he knew that it was dangerous he (not come) wouldn't come

5. If you (see) sawsomeone drowning what would you do?

29 tháng 11 2018

Cau dCau dieu kien loai 1

If it (an)....?......, the children (not go) won't go for a walk

2. If she ( not read) doesn't read the novel, she (nnot pass) won't pass the literature test

3. If i (not argue) don't argue with my father, he ( lend) will lend me his motorbike

4. If we (take) take the bus, we (not arrive) won't arrive in time

5. If dick (not buy) doesn't buy the book, hus friends (be) will be angry with him

Cau dieu kien loai 2

1. I could tell you what this means if i ( know) knew greek

2. If everybody (give) gave $1 we would have enough

3. He might get fat if he ( stop) stopped smoking

4. If he knew that it was dangerous he (not come) wouldn't come

5. If you (see) saw someone drowning what would you do?

1. The subjects are interesting. We talk about them in class. →.......................................................................................................................... 2. Mary is reading an English novel. It is interesting. -> The English novel ............ ............................................................................................ 3. We used the map. My sister drew the map for us. (which)...
Đọc tiếp

1. The subjects are interesting. We talk about them in class. →.......................................................................................................................... 2. Mary is reading an English novel. It is interesting. -> The English novel ............ ............................................................................................ 3. We used the map. My sister drew the map for us. (which) →.................................................................................................................................... 4. The street is very wide. The street leads to my school. (which) → .......................................................................................................................... 5. The radio has suddenly stopped working. It is not very old. ( which) →.................................................................................................................................... 6. They live near a lake. The lake is heavily polluted → .......................................................................................................................... 7. The clothes is unusual. Tom is wearing the clothes. (which)→....................................................................................................................................8.The house is mine. Its windows need painting. (whose) →.......................................................................................................................... 9. The man called the police. His wallet was stolen. (whose) →.......................................................................................................................... 10. The man seems very lonely. His wife and children are away. (whose) →....................................................................................................................... 11. Amanda has now lost her job. Her husband died last year. (whose) →....................................................................................................................... 12. She was not on the board now, so she can't experience these marvelous things. →If she .......................................................................................................................... 13. Because the buses are full up, they do not stop. → If ............................................................................................................................... 14. They won't go swimming if it rains. →If it doesn't ......................................................................................................... 15. I'm not rich, so I can't buy that house. -> If ....................................................................................................................................................... 16. We don't have enough money, so we can't buy that house. →If ................................................................................................................................ 17. The weather is bad so we can't go for a walk. →If ...............................................................................................................................

1
23 tháng 2 2018

1. The subjects are interesting. We talk about them in class.

→....The subjects are interesting so we talk about them in class....

2. Mary is reading an English novel. It is interesting.

-> The English novel ...which Mary is reading is interesting ...

3. We used the map. My sister drew the map for us. (which)

→....We used the map which was drawn by my sister ...

4. The street is very wide. The street leads to my school. (which)

→ ....The street which leads to my school is very wide. ...

5. The radio has suddenly stopped working. It is not very old. ( which) →......The radio which is not very old has suddenly stopped working...

6. They live near a lake. The lake is heavily polluted

→ ..They live near a lake which is heavily polluted.

7. The clothes is unusual. Tom is wearing the clothes. (which)

→...Tom is wearing the clothes which is unsual ......

8.The house is mine. Its windows need painting. (whose)

→...The house whose windows need paiting is mine..

9. The man called the police. His wallet was stolen. (whose) →...The man whose wallet was stolen called the police ...

10. The man seems very lonely. His wife and children are away. (whose) →.....The man whose wife and children are away seems very lonely ..

11. Amanda has now lost her job. Her husband died last year. (whose) →....Amanda whose husband died last year has now lost her job ...

12. She was not on the board now, so she can't experience these marvelous things.

→If she ...were on the board now, she could experience these marvelous things...

13. Because the buses are full up, they do not stop.

→ If ....the buses weren't full up, they would stop .....

14. They won't go swimming if it rains.

→If it doesn't ......rain, they will go swimming .....

15. I'm not rich, so I can't buy that house.

-> If ....I were rich, I could buy that house.....

16. We don't have enough money, so we can't buy that house.

→If ....we had enough money, we could buy that house....

17. The weather is bad so we can't go for a walk.

→If ....the weather weren't bad, we could go for a walk.....