Auto was good for this situation because my subject would move around from shade, to bright sunlight, and then inside the house. This helped me be able to capture the image I wanted without having to change my settings every ten seconds.
Shutter Speed (S)
The shutter speed setting was good for this picture because my subject was moving. The cat kept running away so it was very difficult getting a clear image without using a high shutter speed.
Manual (M)
I wanted to use manual for this shot because I basically wanted to chose everything. The lighting was tricky, so I wanted it bright enough, but I also wanted to choose how much I wanted in focus. Using manual helped me do what I want with my image.
Macro
I used macro for this photo because I only wanted so much in focus. The background behind the bench was very cluttered so I wanted to blur it out as much as I could. Macro mode helped me focus in on a small object.
Portrait
I used portrait for this photo obviously because I was taking a photo of a person (; Using portrait helped make the person's skin tone a little smoother, and it blurred the background pretty well.