Walking, and running. just draw stick figures doing those actions.
They are giving credit to where ever they got their information.
ONE OR MORE SYLLABLES ADDED TO THE BEGINNING OF THE ROOT WORD
I can't think of four things but I was always taught to always cite everything. Even if you think something is an original idea or phrase, look it up and make sure and if someone else has said that just put it in your work cited because that could be considered plagiarism. Also always cite direct quotes
The answer would be David bought a new CD the action would be David buying the CD