5. Running

A: I'm surprised to see you out running.

B: I want to join the track team next semester.

A: Is that why you're training so hard?

B: Yes. I want to be in shape for tryouts.

A: You don't just run to get in shape.

B: What should I do then?

A: You should do some weight training, too.

B: What good is weight training?

A: It will give you strong legs so you can run well.

B: If my legs get too muscular, I'll look like a frog!

A: Frogs are pretty fast.

B: That's true. Maybe as a frog, I'd win all the races.