First, let’s get Quiz #3 under control. Think humming. as in MMMMMMMMMM, because hiM and whoM and whoMever all work the same way. They’re objects. We wouldn’t say “him was speaking,” so we can’t say “whomever was speaking.” The solution is “The cameras showed whoever was speaking.”
Dr. John’s Grammar Quiz #4. See if you can spot the glaring error(s) in this passage: “His headache effected his ability to concentrate. Aspirin had the desired affect and he aced the exam.”
WriterCare with Dr. John 
“Effect” and “Affect” should swap positions..
Quick response. Good thinking. A grammar person for sure.