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

There's a man coming out of his garage with an electrical leaf blower. he

Available choices: --gets the pilot of the car started using the leaf blower.; --opens the screen door and he's using a small, portable a mower to move the leaves on the walkway.; --demonstrates how to put it on center.; --begins blowing the leaves off of his yard for fall cleanup.;
begins blowing the leaves off of his yard for fall cleanup.