College Prep Coach??

This person may have lots of great test prep tips, but I doubt his/her credibility after reading only one post. I marked problem areas. I may have missed a few. Its should be it's. There should be a comma after magic because this is a compound sentence. A comma should be after easy because this word ends an introductory dependent clause. Another comma should be placed after articles because the introductory prepositional phrases need to be separated from the rest of the sentence. Another comma should be placed after say because say ends an introductory dependent clause. Quit should be quite. Whic should be which. Fell should be feel. Another issue I see in this post in the switch between the 3rd person use of "students" mixed with the 2nd person use of "you." Either one would be correct, but both should not be used. After posting the picture, I can't see the red marks very well, so if I have left out an explanation, I will try to add that later. Thanks, Robin, for this one.