1) Unless it stops raining, we won't go out.  ---> If it stops raining, we will go out

2) She cooked better than you did. ---> You didn't cook as well as her

3) Unless someone has a key, we can't get into the house. ---> We can only get into the house if someone has a key

4) We didn't go on holiday because we didn't have enough time  

1. If it doesn't stop raining, we won't go out.

2. You didn't cook as well as her.

3. We can only get into the house if someone has a key.

4. If we had had enough money, we would have gone on holiday.

5. My father allowed me to use his car.

6. Researchers on AIDS began to be carried out by scientists in 1980. 

we can't get into the house because we have lost our key

->If we hadn't lost our key, we could have got into the house.

Viết lại câu:

1,''I advised you to take a holiday''The doctor continued =>"You'd better take a holiday" The doctor continued

2,If you don't rest yourself you really will be ill=>Unless you rest yourself ,you really will be ill

3,Speaking English fluetly is not easy=>It is not easy to speak English fluently

4,It's years since we decorated this room=>We haven't decorated this room for years

5,If join doesn't change his way,he will end up in prison=>Unless john changes his way,he will end up in prison

6,Unless someone has a key,we can't get into the house=>We can only get into the house if someone has a key

7,Peter is a careless driver.If he doesn't take more care,he'll have an accident=>Unless Peter takes more care,he'll have an accident

8,We couldn't anwer the question because it was very hard=>The quesstion was too hard for us to answer

9,The police made the boat turn back=>The boat was made to turn back by the police

thanks pạn linh ná

1) I wouldn't be saying this if I were not sure of the facts.

Unless ......i were sure of the facts, i wouldn't be saying this........
2) I'll take you to the ciscus if it's fine today.
Unless.....it's bad today, i'll take you to the circus............

3) We can't get into the house if nobody has a key
Unless.......somebody has a key, we can't get into the house...........
4) If she had seen him, she would have said " Hello"
Unless.......she hadn't seen him, she would have said hello.........
5) Without the sun, man "would live" in the darkness
If____ there were not the sun, man would live in the darkness___
Unless_____there were the sun, man would live in the darkness____________________

Nếu viết chỉ bằng if thì chỉ có 1 cách thôi nha

1/We dont have a lot of money, so we dont buy a lot of new books

=> If we had a lot of money, we would buy a lot of new books

2/I cannot take a photo of us because I can't find my camera.

=> If I found my camera, I could take a photo of us

3/Ilose the key, so I cannot get into the house.

=> If I didn't lose the key, I could get into the house

4/I am not free today, so we can't go to the beach.

=> If I were free today, we could go to the beach

5/ She doesn't know the answers, so she cant tell you.

=> If she knew the answers, she could tell you

Do morning exercises regularly, your body will be fitter.

-> if

Unless we renewable energy, we will have nothing for the future generation.

-> if we don't userenewable energy, we will have nothing for the future generation.

The climate will unless we reduce the use of non-renewable energy.

-> if we don't reduce the use of non-renewable energy, the climate will...

Look all the doors and noone can break into your house.

-> if you don't look all the doors, your house can/may be broken into.

Unless we countinue hunting polar bears, they will become extinct in near future.

-> if we continue hunting polar bears, they will become extinct in the near future.

srr

if you do morning exercises regularly, your body will be fitter.

1. I lose the key, so I cannot get into the house.
-> If I didn't lose the key, I could get into the house.
2. They are too young to join the army.
-> They are not old enough to join the army.
3. She won't come unless you invite her
-> If you invited her, she would come.
4. We can't hang the picture on the wall. It is heavy.
-> The picture is too heavy for us to hang the picture on the wall.
5. They were tired. They were hungry.
-> They were not only tired but also hungry.
6. They finish their work. They went home.
-> Finishing their work then they went home.
7. She goes out in the rain. She gets wet.
-> If she didn't go out in the rain, she wouldn't get wet.
8. Tom can't lift the table. He isn't strong enough.
-> Tom is not strong enough to lift the table.

3 if you don't invite her, she won't come( unless= if not nên vế trc phr là phủ định nha)

6.finishing their work, they went home

Rewrite the sentences:

1/ The mechanic serviced my car last week

=> I......had my car service last week ........................................................

2/ Although he had a good salary, he was unhappy in his job

=> In spite of............having good salary, he was unhappy in his job...............................................................

3/ He was annoyed because his secretary came late to work

=> He objected........to his secretary because she came late to work.............................................................

4/ The restaurant is so dirty that no one wants to eat there

=> It is such............a dirty restaurant that no one wants to eat there.............................................................

5/ John understood very little of what the teacher said

=> John hardly........understands what the teacher said....................................................

6/ Unless someone has a key, we can't get into the house

=> We can only get........into the house if someone has a key.................................................

7/ I am very pleased that we shall meet again soon

=> I'm looking................forward to meet you again soon..............................................

Rewrite the sentences:

1/ The mechanic serviced my car last week

=> I had my car serviced by the mechanic last week

2/ Although he had a good salary, he was unhappy in his job

=> In spite of his good salary,he was unhappy in his job

3/ He was annoyed because his secretary came late to work

=> He objected his secretary's coming late to work

4/ The restaurant is so dirty that no one wants to eat there

=> It is such a dirty restaurant that no one wants to eat there

5/ John understood very little of what the teacher said

=> John hardly understood anything of what the teacher said

6/ Unless someone has a key, we can't get into the house

=> We can only get a key if we want to get into the house

7/ I am very pleased that we shall meet again soon

=> I'm looking forward to meeting you again