When I do lunges, I use my ....
leg muscles
When I do push-ups, I use my ....
arm muscles
When I do sit-ups, I use my ....
stomach muscles
When I do curls, I use my ....
arm muscles
When I eat, I use my ....
face muscles
When I do squats, I use my ....
leg muscles
When I do crunches, I use my ....
stomach muscles
