Fields for different languages on the same interface I have a node that has many fields but need only the title and body field translated.

This node type has a workflow associated to it and any authenticated user can create that node.

The client requires that fields for language EN/FR are all available on the form

I'm wondering what is the best approach to adopt:
content translation + different fields for each language
or 
Entity field translation

I've tried entity field translation but it does not provide the fields for each language on the same interface and it does not seem to work well with workbench moderation.
You must repeat the fields, because the Entity Translation and the Internationalization (i18n) module don't provive the fields for each language in the same interface.