The examining team has published its most detailed feedback report in respect of the S/D20 sample questions.
To make the most of this resource in preparation for the March 2021 exam you should first attempt the Sample Questions that you will find here:
www.accaglobal.com/uk/en/student/exam-support-resources/fundamentals-exams-study-resources/f8/past-exam-papers.html
Note, that ACCA recommends that you complete the exam through the Practice Platform.
The report can be downloaded from here:
www.accaglobal.com/uk/en/student/exam-support-resources/fundamentals-exams-study-resources/f8/examiners-reports1.html