How to rewrite this LINQ using join with lambda expressions?

Question

It seems like most LINQ is written with lambda expressions. How do I go about rewriting this linq using lambda, kinda confusion with the style (especially with joins)?

var responses =
            from c in questionRepository.GetReponses()
            join o in questionRepository.GetQuestions() on
            c.QuestionID equals o.QuestionID
            where c.UserID == 9999
            orderby o.DisplayOrder
       select new { o.QuestionText, c.AnswerValue };