Hi, Kennedy.
I'd say Audit risk and response questions and Internal control questions for sure as these make up for at least 50 marks. Other than this, I'd presonally focus on Analytical procedures and practice as many MCQs as I can every single day.
Kennedy
Based on my experience with the F8 Audit and Assurance paper I'd suggest you practice as many MCQs as you possibly can as the entire sylabus is examinable here. Audit threats and responses Internal control deficiency and responses Substantive procedures make up the majority of remaining marks
All the best!