Đáp án: If he were my friend, I would invite him to my birthday party.

1. were - would practice

2. would forget - didn't remind

3. had - would understand

4. functioned - would use

5. could - would apply

6. lost - would you do

7. tidied - wouldn't be

8. would travel - spoke

9. wouldn't get - studied

10. didn't have - wouldn't pay

If my friends come, I will be very happy.

 1, If I …………were……..(be)   you, I .............would start........(start) now.
2. If Charles ...............visited.........(visit) me, I ……………would lend……(lend)  him my tools.
3. If Charles ………had…………….( have) got a hammer, he ........would lend..................(lend) it me.
4. If Mary………worked……….(work) part-time in the shop , she ........would get..........(get) more pocket money.
5. If you ................came........(come), you ………would see…………( see ) her.
6. If we ………went…………( go)  to London, we ..............would see............(see) the Tower.
7. I .................told........(tell) her , if she ……………would ask ………..( ask) me.
8. If we ........ate..............(eat) too much, we …………would get………….(get)  fat.
9. If you ......got................(get) up early , you ……………would catch………..(catch) the bus
10. If I ………had……….(have ) some money ,  I ..............would buy.............(buy) a new car.

1. were - would start

2. visited - would lend

3. had - would lend

4. worked - would get

5. came - would see

6. went - would see

7. would tell - asked

8. ate - would get

9. got - would catch

10. had - would buy

cấu trúc câu đk loại 2: If S Ved, S would V₀

1. were/would practice

2. would forget/didn't remind

3. had/would undestand

4. functioned/would use

5. could/would apply

6. lost/would you do

7. tied/would not be

8. would travel/spoke

9. would not get/studied

10. didn't have/would not pay

1. were / would practice

2. would forget / didn't remind

3. had / would understand

4. functioned / would use

5. could / would apply

6. lost / would you do

7. tidied / wouldn't be

8. would travel / spoke

9. wouldn't get / studied

10. didn't have / wouldn't pay

Put the verbs in the brackets into the correct tense to form conditional sentences type 2

1. If I __were_(be) you, I _would practice__(practice) English more often in order bit tobe rusty

2. I ___( forget) my workshret at home___(not remind) me 

Câu này thiếu đề rồi!

3. If Sara _had___(have) a good properly, I __would understand__(understand) her texts!

4. If my computer _functioned__(function) properly,I _would use__(use) it more often

5. If Army _could__(can) speak teo languages ,she _woud apply__(apply) fora job at the Multiculral center

6. If you __lost_(lose) your Iphone ,what _would you do__(you/do)?

7. If Bill _tied__(tidy) up his room every day, it _wouldn't be__(not be) in a mess

8. I __would travel_(travel) to the UK or another English speaking country if I __spoke__(speak) better English

9. Mark _wouldn't get__(not get) such bad marks if he _studied__(study) hard enogh

10. If Samatha __didn't have_(not have) a job, she _wouldn't pay__(not pay for the bills

1. If I ___see___ (see) J Julia, I __will invite__(invite) her to my party.

2. Our parents _won't  (not be) happy if we are (be) late again.

3. If (have) __have___ time, he __will come__ (come) with us.

4. __Will you do____ (you / do) if you (miss)__miss__ the train? 

Dịch câu:

1. Nếu tôi nhìn thấy Julia, tôi sẽ mời cô ấy đến bữa tiệc của tôi.

2. Bố mẹ của chúng ta sẽ không vui nếu chúng ta lại đến muộn.

3. Nếu anh ấy có thời gian, anh ấy sẽ đi cùng chúng tôi.

4. Bạn sẽ làm gì nếu lỡ chuyến tàu?

FURTHER PRACTICE: CONDITIONAL SENTENCES TYPE 1

I. Give the correct form of the verbs in brackets.

1. If he (do)………DOES……… well in the exam, his parents will buy me an MP3 player.

2. If my sister borrows my clothes again, I (scream)……………WILL SCREAM…………..!

3. We’ll leave at 6 o’clock if the weather (be)…………IS………… bad.

4. They (not mind)………………WON'T MIND………………… if we’re a bit late this afternoon.

5. Sarah will be very annoyed if Dave (not call)…………DOESN'T CALL………. her this evening.

6. WILL You still (go)…………GO…………. to the concert if the tickets cost 60 euros?

7. If Rania doesn’t come to the party, WILL Greg (be)…………BE……… upset?

8. I’ll be surprised if Doug and Dana (not get)…………………DON'T GET……………….. a new car soon.

9. If she (leave)……………LEAVES…………… at five o’clock, she’ll be there by half past seven.

10. We (call) ……………………WILL CALL……………………you if we have any problems.

11. He’ll be late for the train if he (not start)……………DOESN'T START………………. at once.

12. If I lend you $100, when WILL you (repay)…………………REPAY………………… me?

13. Unless I have a quiet room, I (not be able)……………WON'T BE ABLE………….. to do any work.

14. If we leave the car here, it (not be)………………WON'T BE…………….. in anybody’s way.

15. Someone (steal)…………………WILL STEAL……………… your car if you leave it unlocked.

16. Unless he (work)……………WORKS………… harder, he will be fired.

17. If you come late, they (not let)……………WON'T LET…………… you in.

18. If you (not go) ………DON'T GO……………away, I’ll call the police.

19. If he (eat) …………EATS……………..all that, he will be ill.

20. What (happen) …………WILL HAPPEN…………….if my parachute does not open?

II. Find and correct the mistake.

1. I get rid of my old car if you don’t need it.

get -> will get

2. You won’t be able to use grammar correctly unless you don’t understand it.

unless -> if

3. Nobody will like you if you won’t change your behaviour.

won't -> don't

4. If I’ll order the new TV set tomorrow, we’ll get it on Monday.

I'll -> I

5. Anna doesn’t come to the party if you don’t invite her.

doesn't -> won't

6. Jack won’t go to dance unless Marry will ask him.

will ask -> asks

7. If you will need my help, I will be in my office until 4:00.

will need -> need

8. If you finish your dinner, you are allowed to watch TV.

are -> will be

9. If we will go shopping tomorrow, I’ll probably buy a new dress.

will go -> go

10. If mum is tired tonight, I cook dinner.

cook -> will cook

11. John will tell us if there will be any news.

will be -> is

12. If I won’t get a good mark in the geography test, I’ll be very annoyed!

won't -> don't

13. You are tired in the morning if you don’t go to bed soon.

are -> will be

14. If you see Karen, do you ask her to call me?

do -> will

15. Does Frank come with us if we go to the beach at the weekend?

Does -> Will

16. If you need help, will tell me!

will tell -> tell

17. If we goes on holiday this summer, we’ll go to France.

goes -> go

18. We won’t have a picnic if the weather didn’t improve.

FURTHER PRACTICE: CONDITIONAL SENTENCES TYPE 1

I. Give the correct form of the verbs in brackets.

1. If he (do)………does……… well in the exam, his parents will buy me an MP3 player.

2. If my sister borrows my clothes again, I (scream)……………will scream…………..!

3. We’ll leave at 6 o’clock if the weather (be)…………is………… bad.

4. They (not mind)………………won't mind………………… if we’re a bit late this afternoon.

5. Sarah will be very annoyed if Dave (not call)…………doesn't call………. her this evening.

6.  Will You still (go)…………go…………. to the concert if the tickets cost 60 euros?

7. If Rania doesn’t come to the party, will Greg (be)…………be……… upset?

8. I’ll be surprised if Doug and Dana (not get)…………………don't get……………….. a new car soon.

9. If she (leave)……………leaves…………… at five o’clock, she’ll be there by half past seven.

10. We (call) …………………will call………………………you if we have any problems.

11. He’ll be late for the train if he (not start)…………………doesn't start…………. at once.

12. If I lend you $100, when will you (repay)…………………repay………………… me?

13. Unless I have a quiet room, I (not be able)……………won't be able………….. to do any work.

14. If we leave the car here, it (not be)…………won't be………………….. in anybody’s way.

15. Someone (steal)……………will steal…………………… your car if you leave it unlocked.

16. Unless he (work)…………works…………… harder, he will be fired.

17. If you come late, they (not let)……………won't let…………… you in.

18. If you (not go) …………don't go…………away, I’ll call the police.

19. If he (eat) …………eats……………..all that, he will be ill.

20. What (happen) …………will happen…………….if my parachute does not open?

II. Find and correct the mistake.

1. I get rid of my old car if you don’t need it.

get -> will get

2. You won’t be able to use grammar correctly unless you don’t understand it.

don't -> bỏ / unless -> if

3. Nobody will like you if you won’t change your behaviour.

won't -> don't

4. If I’ll order the new TV set tomorrow, we’ll get it on Monday.

I'll -> I

5. Anna doesn’t come to the party if you don’t invite her.

doesn't -> won't

6. Jack won’t go to dance unless Marry will ask him.

will ask -> asks

7. If you will need my help, I will be in my office until 4:00.

will -> bỏ

8. If you finish your dinner, you are allowed to watch TV.

are -> will be

9. If we will go shopping tomorrow, I’ll probably buy a new dress.

will go -> go

10. If mum is tired tonight, I cook dinner.

cook > will cook

11. John will tell us if there will be any news.

will be -> is

12. If I won’t get a good mark in the geography test, I’ll be very annoyed!

won't get -> get

13. You are tired in the morning if you don’t go to bed soon.

are -> will be

14. If you see Karen, do you ask her to call me?

do -> will

15. Does Frank come with us if we go to the beach at the weekend?

Does -> will

16. If you need help, will tell me!

will tell -> tell

17. If we goes on holiday this summer, we’ll go to France.

goes -> go

18. We won’t have a picnic if the weather didn’t improve.

didn't -> doesn't

18. We won’t have a picnic if the weather didn’t -> doesn't improve.

III. Choose IF or UNLESS to complete the following sentences.

1. UNLESS my teacher helps me, I’ll be unable to do it.

2. IF I meet his father, I’ll tell him the whole truth.

3. You won’t get well UNLESS you stop eating junk food.

4. UNLESS you exercise regularly, you won’t be able to lose some weight.

5. IF you exercise regularly, you’ll lose some weight.

6. The teacher will be mad IF you don’t do the homework.

7. You can’t go on vacation IF you don’t save your money.

8. You will feel cold UNLESS you wear a jacket.

9. They’ll arrive on time IF they hurry.

10. Don’t call me late UNLESS it’s an emergency.

IV. Rewrite the following sentences.

1. If you don’t study harder, you’ll fail the next exam.

=> Unless you study harder, you'll fail the next exam

2. If he doesn’t practice writing every day, he can’t improve his writing skill.

=> Unless he practices writing every day, he can’t improve his writing skill

3. Unless this man is a driver, he can’t help you move by car.

=> If this man isn't  a driver, he can’t help you move by car

4. Unless you go out more often, you might fall ill.

=> If you don't go out more often, you might fall ill

5. If you don’t return this book to the library today, you’ll have to pay a fine.

=> Unless you return this book to the library today, you’ll have to pay a fine 

6. If you don’t practice harder, you will lose in the next game.

=> Unless you practice harder, you will lose in the next game

7. If Nam doesn’t speak English every day, he will easily forget how to use it.

=> Unless Nam speaks English every day, he will easily forget how to use it.

8. Unless our team had joined the competition, we would not have achieved this prize.

=> If our team had not joined the competition, we would not have achieved this prize

9. If students don’t return books to the library this week, they’ll have to pay a fine.

=> Unless students return books to the library this week, they’ll have to pay a fine

10. If Peter doesn’t study hard, he will get low marks.

=> Unless Peter studies hard, he will get low marks

11. This movie was so boring, so he didn’t watch it.

=> Because this movie was so boring, he didn’t watch it

12. I haven’t seen Mai for 4 years.

=> I last saw Mai 4 years ago

13. Bao was ill yesterday. He did all his homework.

=> Although Bao was ill yesterday,he did all his homework

14. Nowhere is more comfortable than my home.

=> My home is the most comfortable place

15. I started teaching English three years ago.

=> I have taught English for three years

16. Walk faster or you will miss the bus.

=> If you ​don't walk faster, you will miss the bus

17.  I won’t enjoy the film if you aren’t with me.

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

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

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

19. John will pass the driving exam if he isn’t nervous.

=> Unless John is nervous, he will pass the driving exam

20. They will go on holiday if they have time.

=> Unless they don't have time, they will go on holiday

21. You have to get up early or you will be late for school.

 => If you don't get up early, you will be late for school

22. He will take a taxi if it rains.

=> Unless it rains, he will not take a taxi

3.has-will see

4.come-will be

5.earns-will fly

has - will see

come - will be 

earns - will fly

3- if he (have)_has_ a temperature, he (see)_will see__ the doctor

4- if my friends (come)_come__, i (be)__will be_ very happy

5- if she (earn)__earns__ a lot of money, she (fly)_will fly__ to New York

1. C

2. A

3. B

1.A

2.A

3.B