1)Michael Phelps is a swimming champion
2)The football season is about ten months long
3)Serena Williams won more tennis tournaments than her sister Venus last year
4)I teach people to ski. I'm a skiing instructor
1)Michael Phelps is a swimming champion
2)The football season is about ten months long
3)Serena Williams won more tennis tournaments than her sister Venus last year
4)I teach people to ski. I'm a skiing instructor