Write the next sentence in the following story.

A man is outside in his front yard. he

Select from:
[1]. is taking the mower in circles around to mow the grass.;
[2]. is using a heavy squeegee to wash a pair of unpainted grass-scraper's.;
[3]. is using a lawn mower over a long piece of grass.;
[4]. is using a push mower to mow the grass.;. The answer should be
[4].