mojoPortal is a Content Management System, for web sites and applications. The framework supports building your own applications on top of it, but currently there are no Learning Management System (LMS) systems available for mojoPortal. I know Joe has said that he does not have any plans on building an LMS for mojoPortal, and I know as a individual module developer, I do not have plans either.
Like Joe said, this question has been asked many times before and has been given the same answers. None of us that are currently developing for mojoPortal have plans for developing an LMS. Please stop asking the same questions over and over, because as Joe said, the answer will continue to be the same.