I (walk / walks) through the door.
walk
The children (play / plays) baseball.
play
He (crawl / crawls) under the table.
Eric (kick / kicks) the ball.
kicks
We (slide / slides) down!
slide
Sophie (watch / watches) TV.
watches
You (listen / listens) to the teacher.
listen
She (run / runs) around the track.
runs
The koala (climb / climbs) the tree.
climbs
They (exercise / exercises) every Thursday.
exercise