1. My friend Harry fell off the ladder while he was painting the ceiling of his room.
2. We bought the house in 2003. At that time, it cost £150,000.
3. Dad wasn't interested in buying a new car.
4. My sister was waiting for me at the airport terminal when I arrived.
5. A few nights ago, I was reading a book when suddenly I heard a noise outside. A few teenagers were playing loud music.
6. The fire was still burning when the first firefighters arrived at the scene.
7. My brother was looking for a job when he came across an interesting ad in the newspaper.
8. I heard someone call my name. I turned and saw my dad standing at the back of the queue. I was so surprised.
9. My sister was wearing a bright summer dress when I saw her at the performance.
10. I started preparing dinner at 4 p.m., and I was still at it when my wife came home.
11. Our housekeeper broke the vase. As she was picking up the pieces, she cut her middle finger.
12. We suddenly realised that we were driving in the wrong direction.
13. She was a great skier when she was young.
14. I met an old friend in town while I was doing the shopping.

1. My friend Harry fell off the ladder while he was painting the ceiling of his room.
2. We bought the house in 2003. At that time it cost £150,000.
3. Dad was not interested in buying a new car.
4. My sister was waiting for me at the airport terminal when I arrived.
5. A few nights ago, I was reading a book when suddenly I heard a noise outside. A few teenagers were playing loud music.
6. The fire was still burning when the first firefighters arrived at the scene.
7. My brother was looking for a job when he came across an interesting ad in the newspaper.
8. I heard someone call my name. I turned and saw my dad standing at the back of the queue. I was so surprised.
9. My sister was wearing a bright summer dress when I saw her at the performance.
10. I started preparing dinner at 4 p.m., and I was still at it when my wife came home.
11. Our housekeeper broke the vase. As she was picking up the pieces, she cut her middle finger.
12. We suddenly realised that we were driving in the wrong direction.
13. She was a great skier when she was young.
14. I met an old friend in town while I was doing the shopping.

1fell - was painting

2bought -was costing

3isn't 

4was waiting - arrived

5bought - heard - were playing

6was still burning - arrived 

7was looking - came