3. I didn't see Jamie. He had left before we arrived.
4. They went to Disneyland last week.
5. The sun was shining all week.
6. He was washing the car when it started to rain.
7. If you heat wather, it boils.
8. YOu need take short breaks every hour when you work on a computer.
9. Gerry was working in the garden while Jane and Penny were cooking lunch.
10. Laura coudn't get into the house as she lost her keys.
11. He decorated the flat himself.
12. If you study hard, you will pass your exams this time.
13. I was making dinner when the phone rang.
14. If he wins the lottery, he'll go on a round-the-world trip.
15. If he eats lots of junk food, he puts on weight