[Columbine]

Koir has already been through most of this, so I won't go through it again. I'll just add this:

"When you call your boss and fellow workmates, you should add “san” to their family names."

And give you a few questions to think about.
When you introduce yourself, would you say "call me Yuri," or "call me with Yuri". What's the difference? Is there a more formal word for 'call' or 'to say someone's name'?

Can you now see the mistake in your work?

Answer: (highlight between to see) If you are a female student, you would address your female friends with “san” (highlight between)

You could also say 'using' instead of 'with'.