I'm trying to draw a circle and make it as transparent by removing it. I used the Elliptical Marquee Tool but it cannot be drawn with the same size of the circle that I want to remove. Is there any way to adjust the circle size after it get drawn?
I'm not entirely sure I understand what you are trying to achieve so please forgive me if I got it wrong, but if you use the Ellipse Tool you can set the fill to none, just apply a stroke. If you then also want an inner circle duplicate the Ellipse shape layer, rescale it but while holding down Alt+Shift after you begin dragging, to constrain the circle and scale from the centre, then set the stroke of the inner circle to a different colour.