1.      I don’t buy it because I don’t have enough money.

.....If I had enough money, I would buy it...........................................................................................

2.      There was a test yesterday. I didn’t know that, so I didn’t study for it.

 If I .....had known there was a test yesterday, I would have studied for it..................................................................................................

3.      You can offer me more money, but I still won't sell the house to you!

               Even  .......if you offered me more money, I still wouldn't sell the house to you............................................................................................

4.      He’s very thin, that’s why he feels the cold so much.

If he .....wasn't thin, he wouldn't feel cold so much..................................................................................................

5.      I didn’t eat breakfast several hours ago, so I am hungry now.

 If I ..........had eaten breakfast several hours ago, I wouldn't have been hungry then

................................................................................................

6.      If I won a big prize in a lottery, I’d give up my job.

Unless .......you won a big prize, I 'd not give up my job.............................................................................................

7.      If you don’t like this one, I’ll bring you another.

Unless ......I like this one, I will bring you another.........................................................................................

8.      Thanks to the skill of the surgeon, the child survived.

If it ......hadn't been for the skill of the surgeon,.....the children wouldn't have survived...........................................................................................

9.      You can use my car, but have to keep it carefully.

Provided.....keeping my car it carefully, you can use it........................................................................................

10.  Keeping calm is the secret of passing your driving test.

As long as .....you keep calm, you will pass your driving test.....................................................................................