Multi-choice problem: Continue writing the next sentence in this paragraph:

A man is working over the back of a trailer. He is welding the metal between two pieces of wood. sparks

Pick from:
[1]. fly as he screws more together..
[2]. fly as the metal peels off..
[3]. fly as he works, crouching down on the sidewalk..
[4]. fly as he pieces of wood are thrown off of the top..
[3].