Multistore: 1 language for store

[danielemisto]

Hi!
I'm a newbie to multistore feature.

I need help to configure languages on multistore website.
I created a tree like this:

B2B GROUP:

EN (pro.mysite.com)

ES (pro-es.mysite.com)

IT (pro-it.mysite.com)

 

B2C GROUP:

EN (mysite.com)

ES (es.mysite.com)

IT (it.mysite.com)

 

I need separate website (one for language), because the product and the prices aren't same for different states.

But... when I add a other languages in BO, the FO add a language suffix in url (like: en.mysite.com/it)

How to force PS to work in one language for single site?

For Italian B2C users, I like show it.mysite.com, and not: it.mysite.com/it

 

Can you help me?
Thanks!!!