Complete the sentences using Participle I or Participle II.
1. When I came to the doctor there were a lot of people waiting/waited in
the hall.
2. Orange juice drinking/drunk by people all over the world is good for
health.
3. People doing/done morning exercises feel energetic all day long.
4. Tennis competition holding/held at Wimbledon is an im portant international sports event.
5. On weekends you can see many people riding/ridden bikes in the parks.
6. The children swimming/swum in the sea have a lot of fun.
7. The boy picking/picked apples in the garden is my brother.
8. The book writlng/wrtten by a famous sportsman is very interesting.
9. The hot chocolate making/made by my mother was tasty.