Write the next sentence in the following story.

A boy is in tinkering with a skateboard in the trunk of a car. the boy

(1). is holding the skateboard with one hand and is twirling the end of the skateboard using the other..
(2). then locks the trunk then takes the skateboard down..
(3). gets back in the car, the camera zooms in, and we see him hand build a baby set of boards for skateboarding tricks in his backyard..
(4). then rides that skate board down a street... The answer should be
(4).