On my speech mark quiz, I got 10 out of 10(100%) on my first go.
I couldn't have got 10 out of 10 if I did not know, when, where and how to use speech marks. I'll show you an example.
Hey Jeff, what are you doing? asked Bob.
See how there are no speech marks. I'll edit that sentence and fix my mistake.
"Hey Jeff, what are you doing?" asked Bob.
Now I fixed my mistake and my sentence is better. See how the quotation marks(Speech Marks) are after the question mark. You always have to put your pucuation inside of the speech marks.
Now you know where to put the speech marks.