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

A man is standing inside a workshop. he

Choose your answer from:
* is using a bicycle a is laying on the ground.;
* is welding something on the ground in front of him.;
* leans over, welding a piece of metal.;
* is rubbing the ice off of a car with a brush.;
leans over, welding a piece of metal.