1 Recently skateboarding (become) has become very popular with people of my age.
2 One of my friends (do) have recently done a special training course for skateboarders.
3 On the course he (learn) has learnedhow to do several tricks.
4 The teachers on the course (demonstrate) demonstrated every trick first.
5 On the second day, he (have) had an accident, but he (be) was not badly hurt.
6 Now he (decide) decided to train hard and become a champion!