1.We can't go because it is raining.

=>If.......................

2.Unless there is so much traffic, the air won't be polluted.

=>If......................

3.If it doesn't rain, there will be a shortage of water.

=>Unless..............................

4.Unless she starts at once, she ill be late.

=>If...........................

5.You will lose your job. You are late again.

=>If................

6.If she doesn't hurry, she will miss the train.

=>Unless........................

7.The weather is not fine.We can't take photographs.

=>If.......................................

8.You press this botton to shop the machine.

=>If........................................

9.We don't have enough money so we can't buy that house.

=>If.......................................................

10.If someone doesn't put the coal in, the fire will go out.

=>Unless........................