What is the best way to revise and to prepare for the narrative elements of SBR questions?

The best way to revise and to prepare for the narrative elements of the SBR exam is to do questions, to time. Do not simply read through answers. Read a scenario, plan your answers, and physically type them out under timed conditions. Reviewing the exam focussed answers prepared by Tom Clendon and / or subsequently watching Tom Clendon debrief the question will the gap between your baseline answer and what is required to secure a pass. You can find some examples of Tom Clendon debriefing past exam questions on his YouTube channel and plenty more on his online courses.