Make conditional sentences for the following situations. 1. The war will spread everywhere if we don’t stop it.  Unless 2. All our beautiful forests will be destroyed if we do nothing to preserve them.  Unless 3. If he hasn’t got a ticket, they won’t let him in.  Unless 4. If it doesn’t rain, we will have no water to use.  Unless 5. These flowers will die if nobody waters them.  Unless 6. Do your exercises or you will be punished.  Unless 7. The building is too high. He can’t climd up.  If 8. That house is too expensive. I can’t buy it.  If 9. He didn’t work hard last term, he lost his job.  If 10. Mary didn’t have money with her. She couldn’t buy that present.  If 11. There was a test yesterday. You didn’t know that, so you didn’t study.  If I had known that 12. Your friend was in the hospital. You didn’t know that, so you didn’t visit her.  If I had 13. I’ve never met your friend. You didn’t know that, so you didn’t introduce me.  If I had 14. It was cold yesterday, so I didn’t not go for a walk.  If it 15. I am tired so I can’t cycle to work.  If I

1, Unless we stop it, the war will spread everywhere
2, Unless we don't nothing to preserve them, all our beautiful forests will be destroyed

3, Unless he has got a ticket, they won’t let him in.
4, Unless it rains, we will have no water to use.
5, These flowers will die unless someone waters them
6, Unless do your exercises, you won't be punished.
7, If the building isn't too high, He can climb up.
8, If that house isn't too expensive. I can buy it.
9, If he worked hard last term, he didn't lose his job.
10, If Mary had money with her, she could buy that present. 
11, If I had known that there was a test yesterday, I would have studied
12, If I had known that my friend was in the hospital, I would have visited her
13, If I had known that you hadn't met my friend, I would have introduced you
14, If it hadn't been cold yesterday, I wouldn't go for walk   
15, If I weren't tired, I would cycle to work

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Câu DK1: If + S + V(s,es), S + Will/Can/shall…… + V

Câu DK2: If + S + V2/ Ved, S +would/ Could/ Should…+ V

Unless=If..not

1. Unless we stop it, the war will spread everywhere

2. Unless we don't nothing to preserve them, all our beautiful forests will be destroyed

3. Unless he has got a ticket, they won’t let him in.

4. Unless it rains, we will have no water to use.

5. These flowers will die unless someone waters them

6. Unless do your exercises, you won't be punished.

7. If the building isn't too high, He can climb up.

8. If that house isn't too expensive. I can buy it.

9. If he worked hard last term, he didn't lose his job.

10. If Mary had money with her, she could buy that present. 

11. If I had known that there was a test yesterday, I would have studied

12. If I had known that my friend was in the hospital, I would have visited her

13. If I had known that you hadn't met my friend, I would have introduced you

14. If it hadn't been cold yesterday, I wouldn't go for walk   

15. If I wasn't tried, I would cycle to work