1. You can't visit the United States so you don't get a visa 

If ......you got a visa, You could visit the United States........................................................................

2. We didn't go on holiday because we didn't have enough money

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

3.Elizabeth got a bad cold because she started smoking cigarettes 

If Elizabeth.........hadn't started smoking cigarettes , she wouldn't have got a bad cold ................................................................

4. he did'nt phone me immediately so he didn't get any information

If he........had phoned me immediately, he would have got information........................................................................

5. Mr. Will lost his job because he was late every day

If Mr.Will.......hadn't been late everyday, he wouldn't have lost his job................................................................

6. It  is so cold that we can't  go out 

If .........it weren't cold, we could go out........................................................

7.he doesn't hurry, so he misses the train

If .......he hurried, he wouldn't miss the train..........................................................

8.Sussan felt sick because she ate 4 cream cakes

If .........Susan hadn't eaten 4 cream cakes, she wouldn't have felt sick..............................................................

Dịch

You can t visit the United States unless you get visa

Bạn không thể đến thăm Hoa Kỳ trừ khi bạn được cấp thị thực

If don't you get a visa, you can't visit the United States.

mnn cíuuu mikk điii ạ 

If you don't get a visa, you won't can visit the UK

The train was delayed for twenty minutes because of the bad weather .

-> Because the weather is bad, the train was delayed for 20 minutes.

2 , I was sorry I didn't know how to do it .

-> I wish I had known how to do it.

3 , You can't visit the United States unless you get a visa .

-> If you don't get a visa, you can't visit the United States .

1. Unless you study harder, you'll get bad marks.
2. If this man isn't a driver, he can't help you move by car.
3. Unless he practices writing every day, he can't improve his writing skill.
4. If the student doesn't go to school early, he will be punished.
5. If you don't try your best, you can't run fast.
6. Unless you leave me alone, I'll call the police.
7. Unless the weather is bad, we will go.

1. If you don't study harder, you will get bad grades.

=> Unless you get a bad grade, you won't study harder than ____________________________.

2. Unless this man is the driver, he can't help you get around by car.

=> If this man is the driver, then he won't help you get around by car.
_______________________________________.

3. If he doesn't practice writing every day, he can't improve his writing skills.

=> Unless he can't improve his writing skills, he doesn't practice writing every day____________________________________.

4. Unless the student goes to school early, he will be punished.

=> If he is punished, then the student must go to school early, _____________________________________________.
5. You can't run fast unless you try your best.

=> If you don't try your best, you can't run fast ___________________________________________________________________.

6. I'll call the police if you don't leave me alone.

=> Unless _you don't leave me alone then  I'll call the police
________________________________________________.

7. We won't go away if the weather is bad.
=> Unless _the weather is bad then we don't go away___

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

You can't visit the United state if you don't have a visa

=>If you had a visa, you could visit the United state .

III. Rewrite the sentences below so that their meaning stay the same.
1. I'll call the police ì you don't leave me alone.

Unless...you leave me alone, I'll call the police.........................................................

2. You can't visit Moscow unless you get a visa.

If you........don't get a visa, You can't visit Moscow..........................................................

3. Unless he phones right now, he won't get any ìnormation.

If.......he doesn't phone right now, he won't get any ìnormation.......................................................................

IV. Rewrite the sentences: (TYPE I)

1. Work hard and you will pass the exam. If...you work hard, you will pass the exam........

2. Hurry up or you'll be late for class.If you.....don't hurry up, you'll be late for class......

3. Stop borrowing money , or you'll be in trouble.If....you don't Stop borrowing money , or you'll be in trouble......

III. Rewrite the sentences below so that their meaning stay the same.
1. I'll call the police ì you don't leave me alone.

Unless you leave me alone, l'll call the police ...........................................................

2. You can't visit Moscow unless you get a visa.

If you don't get a visa,you can't visit Moscow .................................................................

3. Unless he phones right now, he won't get any ìnormation.

If he doesn't phone right now,he won't get any information ............................................................................

IV. Rewrite the sentences: (TYPE I)

1. Work hard and you will pass the exam. If you work hard ,you will pass the exam ..........

2. Hurry up or you'll be late for class.If you don't hurry up,you'll be late for class..........