. She can't be employed because she doesn't have a college degree.

--> If she had a college degree, she couldn't be employed.

. She walked to the meeting. She was late.

--> If she hadn't walked to the meeting, she wouldn't have been late.

8. Unless you promise to retum back, I won't lend you.

--> If you don't promise to return back, I won't lend you.

. He put off our trip because the weather was terrible.

--> If the weather hadn't been terrible, he wouldn't have put off our trip.

 Sally doesn't know what she has to do for homework because she was absent from school on Friday.

--> If Sally knew what she has to do for homework, she wouldn't have been absent from school on Friday.

. Unless you like this one, I'll bring you another.

\Rightarrow If Martin hadn't been nervous, he wouldn't have failed his driving test.

>If he pays me tonight, I will have enough money to buy a car.

A. 

=>should...you arrive at the office earlier than i do, please turn on the air-conditioner......

⦁ She can't be employed because she doesn't have a college degree.

If  she had a college degree , she could be employed

⦁ She walked to the meeting. She was late.

If she had walked to the meeting , she would have been late.

⦁ Unless you promise to return back, I won't lend you.

If  you promise to return back , I will lend you

⦁ We put off our trip because the weather was terrible.

If the weather hadn't been terrible , we would not have put off our trip 

⦁ Sally doesn't know what she has to do for homework because she was absent from school on Friday.

If Sally had not been absent from school on Friday, she would have known what she has to do for homework.

⦁ If you do not like this one, I'll bring you another.

If you like this one , I'll not bring you another.

⦁ Unless Martin failed his driving test last week because he was very nervous.

If Martin had not been nervous , he would not have failed  his driving test last week

⦁ He will pay me tonight; I will have enough money to buy a car.

If  he pays me tonight , I will have enough money to buy a car.

⦁ Leave me alone or I'll call the police.

If  you don't leave me alone, I will call the police.

⦁ If you arrive at the office earlier than I do, please turn on the air-conditioner.

 Should you arrive at the office earlier than I do, please turn on the air-conditioner.

1 If she had a college degree, she could be employed 

2 If she hadn't been late, she would have walked to the meeting

3 If you don't promise to return back, I won't lend you

4 If Sally hadn't been adsent from school, she would know what he has to do for homework

5 If you like this one, I won't bring you another

6 If Martin hadn't been nervous, he wouldn't have failed his driving test

7 If he pays me tonight, I will have enough money to buy a car

8 If you don't leave me alone, I will call the police

9 If you don't arrive at the office earlier than I do, don't turn on the air-conditioner

1. I would be surprised if Ann came to see us now.

2. If we had enough money,we would go on holiday

3. Unless you do these exercises more carefully, you will fail the exam.

4. If I knew the answer, I could tell you.

5. If she knew French, she could apply for the job

6. Unless she cam here now, we'd come back home

7. Unless you are careful, you will be able to get the job

8. If it rains soon, the tree won't die

* 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_________.

4 Unless you invite her, she won't go to the party

5 Unless you run, you won't be on time

6 If you don't pay the money, I will call the police

7 Unless you put on your coat, you will get a cold

8 Unless he stops smoking, he will have problems later 

9 If he doesn't know the news, he won't come back

10 Unless you help me, I won't give you that Beyonce'CD

1  If she had a college degree, she could be employed .
2 if I had enough money i could go on a long holiday this year.
3 If  he weren't slow we would give him such an important task.
4 If didn't have to go to work this Sunday i would join your picnic.

Bài này ở phần câu điều kiện loại 2 ạ

1, If he didn't have to study for his exam, he could go out

2, If she weren't lazy, she could pass the exam

3, If he didn't smoke too much, he could get fid of his cough

4, If he pay me tonight, i would have enough money to buy a car

5, If she weren't very shy, she would enjoy the party 

6, If i got a work permit, i would stay for another month

7, Câu này mình không biết chuyển thế nào ┐( ´ ～｀)┌            

8, If i had the right change, we could get the ket

9, If you didn't study hard, you would pass the exam 

10, If you weren't impatient, you would make mistakes

Mình làm cho luôn

7  =) If he took some exercises , he would be healthy .

1.Na likes swimming but she doesn't know how to swim

-> Na wishes she knew how to swim

2.Lan is late because she gets up late

-> If Lan got up early, she wasn't late

3.Its years since we decorated this room

-> We haven't decorated this room for years

4.It was such rotten meat that it had to be thrown away

-> The meat was rotten, so we threw it away

5.You can't visit the USA unless you get a visa

-> If you get a visa, you can visit the USA

6.If you don't rest yourself,you will be ill

-> Unless you rest yourself, you won't be ill