Is there a work done in a girl that carrying a bag walking down a street?

Yes, there is work done when a girl carrying a bag walks down a street. Work is defined as the force applied to an object multiplied by the distance over which that force is applied in the direction of the movement. In this case, the girl exerts a force to lift and carry the bag while moving, thus performing work as she walks. However, if we consider only the vertical movement of the bag, the work done against gravity depends on whether she is ascending or descending.