Odpowiedź:
1. We don't know if the activity is easy for the girl to do, but on the picture she doesn't look like she is having trouble with doing it, so we can assume that the activity is easy for the girl to do.
2. I'd like to be able to do backflips and frontflips, because they are spectacular.
3. One time I've watched a dance competition. The dancers were really talented and they looked like they were flying all over the scene. The show was exciting and I've watched it until the end. I totally recommend everyone to watch a dance competition some day.