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What would you do if you didn't have an exam the next day? 
What would you do if you weren't offer a job in Australia?
What would you do if you didn't wake up and see a snake in your bedroom? 
What would you do if you didn't get too much change from a shop assistant? 
What would you do if you didn't see somebody stealing something in a shop? 
What would you do if you didn't borrow a friend's car and broke one of the lights?

if I didn't have an exam the next day, I would go to bed.if I weren't offered a job in Australia, I would find it in Italy.if I didn't wake up and see a snake in my bedroom, I would be dead if I didn't get too much change from a shop assistant, I wouldn`t get into trouble.if I didn't see somebody stealing something in a shop,I wouldn`t be late for schoolif I didn't borrow a friend's car and broke one of the lights, I would`t quarrel