Ответ:

1. If I had an exam the next day, i'd revise the whole evening before

2. If I was offered a job in Australia, I'd discuss it with my parents and make a final decision

3. If I woke up and saw a shake in my bedroom, I'd scream and run out of my room.

4. If I met my friend of childhood, I'd hug him and tell how much I've missed him

5. If I got too much change from a shop assistant, I'd let him know he had made a mistake

6. If I saw somebody stealing something in a shop, I'd inform the manager about it

7. If I borrowed a friend's car and broke one of the lights, I'd pay for its reparation