Passing exercise you can do against any wall, kick wall, or rebounder (stay away from windows)
This is for inside of the foot passing. When passing, your foot should be locked (stiff), heal pointed towards the ground as illustrated in the video. You should be making contact with the ball center/slightly above center. As you get better at this you can move further back to test your skills. Doing this for 5-10 minutes a day will really improve your passing.