Multi-select problem: How does the next paragraph end?

There are people sitting and waiting on top of a mountain waiting to start skiing. the skier going fast downhill

Options:
* is demonstrating how to turn and manage speed while going downhill..
* finally comes out of his chute, he goes over and lands on the snowy slope..
* till they reach the top..
* lands on the bit in his ski..
is demonstrating how to turn and manage speed while going downhill.