Em bổ sung thêm đề bài để mọi người hỗ trợ nhé.

1. If you keep silent, you won't wake up the baby up.

or If you don't keep silent, you will wake the baby up.

2. If you don't stop talking, you won't understand the lesson.

or If you stop talking, you will understand the lesson.

3. If she doesn't complete the task, she will be punished.

4. If you may want a chat, you will call me( or give me a ring).

5. If you throw a stone into water, it will sink.

6. If you press this putton, you will stop this machine.

7. If you make me some coffee, I'll give you one of my biscuits.

8. If you take more exercise, that will be the way to get fit.

9. If you have to work tomorrow, I won't be able to meet you.

* Write a sentence with if for each situation

1 you should take more exercise because that's the way to get fit

--> If you want to keep fit, you should take more exercise

2 The accident happened because the driver in front stopped so suddenly

--> If the driver in front hadn't stopped so suddenly, the accident wouldn't have happened

3 i haven't got a key , so i can't get in

--> If I got a key, i could get in

4 throw a stone into water and it sinks

--> if you throw into water, it will sink

5 i didn't have any breakfast , and now i'm hungry

--> if I had breakfast, I wouldn't be hungry now

6 road travel is cheaper than rail travel in this country , so we have lots of traffic jams

--> if the road travel wasn't cheaper than rail travel in this country, we wouldn't have lots of traffic jams

7 martin failed his driving tests last week , so i can't begin a new project today

--> if Martin hadn't failed his driving tests, i could begin a new project today

8 you may want a chat , so just give me a ring

--> if want a chat, give me a ring

Practice: Write conditional sentences

1. Eat much and you will get fat. 1

-> If you eat much, you will get fat.

2. You should take more exercise because that’s the way to get fit. 1

-> If you want to get fit, you should take more exercise.

3. Throw a stone into water and it sinks. 1

-> If you throw a stone into water, it will sink.

4. I haven’t got a key, so I can’t get in. 2

-> If I had got a key, I could get in.

5. I don’t have a laptop, and now I can’t type the assignment. 2

-> If I had a laptop, I could type the assignment.  

6. Road travel is cheaper than rail travel in this country, so we have lots of traffic jams. 2

-> If road travel was not cheaper than rail travel in this country, we wouldn't have lots of traffic jams.  

7. You may want a chat, so just give me a ring. 1

-> If you want a chat, you can give me ring.

8. We don’t visit you very often because you live so far away. 2

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

9. Do your homework or you have to do all the housework. 1

-> If you don't do your homework, you will have to do all the housework. 

10. I have to work NOW, so I can’t meet you. 2

-> If I didn't have to work now, I could meet you.

11. Practice the piano regularly and you will play better.1

-> If you practice the piano regularly, you will play better.

12. Carol doesn’t answer the phone because she is studying.

-> If Carol was not studying, she would answer the phone.

1.If you didn't take exercise regularly, it wouldn't be the way to get fit.

2. If I had a dictionary, I could look the word up.

3.If I had his phone number, I would phone him.

4.If you didn't give me a ring, you might want a help.

5.If it wasn't raining, we would finish the game.

6.If thu bus weren't always so crowed, I would take it to school very morning.

7.If people realised how important it is to conserver energy, they wouldn't do nothing about it.

8.If David wasn't so clumsy, he wouldn't have a lot of accidents.

Ex1: Complete the conditional sentences, using the given information:

1. You should take exercise regularly because it is the way to get fit.

=> If you take exercise regularly, you will get fit.

2. I can't look the word up because I don't have a dictionary.

=> If I had a dictionary, I could look the word up.

3. I don't have his phone number, so I don't phone him.

=> If I had his phone number, I would phone him.

4. You may want a help, just give me a ring.

=> If you want a help, you must give me a ring.

5. It is raining, so we won't finish the game.

=> If it weren't raining, we would finish the game.

Ex1: Complete the conditional sentences, using the given information:

1. You should take exercise regularly because it is the way to get fit.

-> If you didn't take exercise regularly, it wouldn't be the way to get fit.

2. I can't look the word up because I don't have a dictionary.

-> If I had a dictionary, I could look the word up

3. I don't have his phone number, so I don't phone him.

-> If I had his phone number, I would phone him.

4. You may want a help, just give me a ring.

-> If you didn't give me a ring,you might want a help

5. It is raining, so we won't finish the game.

-> If it wasn't raining, we would finish the game.

6. I don't ride the bus to school every day because it is always crowded.

-> If the bus weren't always so crowded, I would take it to school every morning

7. People don't realise how important it is to conserver energy, so they do nothing about it.

-> If people realised how important it is to conserver energy, they wouldn't do nothing about it.

8. David has a lot of accidents because he is so clumsy.

-> If David wasn't so clumsy,he wouldn't have a lot of accidents

1. I am sorry i disturbed you. I did not know you were busy

→ If....I had known you were busy, I wouldn't have disturbed you

2. It might rain. if it does, everyone can eat inside

→ If....it rains, everyone can eat inside

3. Margaret was not injured in the crash because she was wearing a seat belt.

→ If....Margaret had been wearing a seat belt, he wouldn't have been injured in the crash

4. I have to work tomorrow evening, so i can not meet you

→ If..I didn't have ..to work tomorrow evening, I could  meet you

1 If you take more exercise, you will get fit

2 If I had a key, I could get in

3 If you throw a stone into water, it sinks

4 If I had a laptop, I could type the assignment

5 If road travel weren't cheaper than rail travel in this country, we wouldn't have lots of traffic jams

6 If you want a chat, give me a ring

7 If the wind weren't blowing hard, I would take the boat out for a ride

8 If you didn't live so far away, we would visit you often

9 If I didn't have to work tomorrow evening, I could meet you

10 If you practice the piano regularly, you will play better

11 If Carol weren't studying, she would answer the phone